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Idioms are creative expressions where the overall meaning is different from the literal meaning of the individual words. People use them to make everyday speech more imaginative, expressive, and fun to hear. Learning these phrases will help you describe things that last endlessly, stay constant, or stretch far into the future. In this guide, you will explore many helpful sayings related to permanent time and endless duration.
In this lesson, we’ll look at idioms for forever that mean lasting indefinitely, continuing without end, or taking an exceptionally long time. Let’s get started and explore some of these helpful expressions.
Idioms for Forever
1. Til the cows come home
Definition: This means doing an activity for a very long, seemingly endless amount of time.
Used in a Sentence: You can talk about video games til the cows come home, but we still have to do homework. / We could play board games til the cows come home on rainy afternoons.
Similar Expressions: For an endless duration / For ages
2. From now until doomsday
Definition: This means stretching into the future without any foreseeable end point.
Used in a Sentence: She promised to keep her best friend’s secret from now until doomsday. / You could search from now until doomsday and never find another pet as sweet as this one.
Similar Expressions: Until the end of time / Eternally forward
3. For keeps
Definition: This means holding or owning something permanently rather than borrowing it temporarily.
Used in a Sentence: My cousin gave me his old baseball glove for keeps. / Are you sharing those colorful stickers or giving them to me for keeps?
Similar Expressions: Permanently / For good
4. Until the end of time
Definition: This means lasting through all future ages without ever stopping.
Used in a Sentence: Their loyalty to the local sports team will last until the end of time. / I will treasure this handmade birthday card until the end of time.
Similar Expressions: Forever and ever / Into eternity
5. For good
Definition: This means completely and permanently without any possibility of changing back.
Used in a Sentence: When his family moved across the country, they left the small town for good. / She finally fixed the squeaky bicycle chain for good.
Similar Expressions: Permanently / Once and for all
6. Time without end
Definition: This means an ongoing period that seems to have no starting limits or ending borders.
Used in a Sentence: The ocean waves have crashed against the rocks for time without end. / Ancient stars have burned brightly in outer space for time without end.
Similar Expressions: Endless time / Infinite duration
7. Ever and anon
Definition: This means continuing repeatedly throughout time as an ongoing constant.
Used in a Sentence: The old clock chimed ever and anon through the quiet night hours. / She returned to her favorite reading spot ever and anon during summer break.
Similar Expressions: Continually / Through all times
8. World without end
Definition: This means an existence or state that goes on endlessly into the deep future.
Used in a Sentence: Stories of brave knights seem to exist in a world without end. / Love between family members can feel like a world without end.
Similar Expressions: Everlasting life / Endless state
9. Until hell freezes over
Definition: This means a task or wait that will take an impossibly long time or never happen.
Used in a Sentence: My brother said he would wait until hell freezes over before giving up on the game. / You can sit there until hell freezes over, but the rain will not stop just because you want it to.
Similar Expressions: Never ending time / Endless wait
10. For all time
Definition: This means holding importance or staying unchanged through every era of history.
Used in a Sentence: The museum preserves great art treasures for all time. / His heroic act was recorded in the town records for all time.
Similar Expressions: Throughout history / For eternity
11. To the end of the line
Definition: This means staying dedicated to a journey or friendship until the very final moment.
Used in a Sentence: True friends will stick together all the way to the end of the line. / He followed the hiking trail all the way to the end of the line.
Similar Expressions: Until the absolute end / To the very last
12. Till kingdom come
Definition: This means waiting or continuing for an extremely long or infinite stretch of time.
Used in a Sentence: You could stand in line till kingdom come if you do not buy a ticket early. / We waited till kingdom come for the delayed bus to arrive.
Similar Expressions: For an age / Forever and a day
13. For donkey’s years
Definition: This means taking place over a remarkably long period of years.
Used in a Sentence: Our neighbors have lived in that yellow house for donkey’s years. / My grandfather has driven the same reliable blue truck for donkey’s years.
Similar Expressions: For a very long time / For decades
14. Till the sun rises in the west
Definition: This means a duration so long or impossible that it spans beyond normal time.
Used in a Sentence: I will protect my little sister till the sun rises in the west. / He claimed he would keep practicing guitar till the sun rises in the west.
Similar Expressions: For impossible time / Eternally
15. From age to age
Definition: This means passing down continuously through generations without stopping.
Used in a Sentence: The traditional folk song was handed down from age to age. / Stories about the mountain monster passed from age to age in the village.
Similar Expressions: Generation after generation / Through the ages
16. Forever and a day
Definition: This means a length of time that feels even longer than regular eternity.
Used in a Sentence: Cleaning up the huge mess in the gym took forever and a day. / We stood in line forever and a day just to ride the new roller coaster.
Similar Expressions: An endless stretch / Extraordinarily long time
17. Written in stone
Definition: This means a rule, decision, or fact that is permanent and can never be altered.
Used in a Sentence: The schedule for the school field trip is officially written in stone. / Nothing in our weekend plans is written in stone, so we can change them.
Similar Expressions: Permanently fixed / Unchangeable
18. Age after age
Definition: This means continuing steadily through endless historical periods.
Used in a Sentence: The ancient pyramids have stood strong age after age in the desert sand. / Deep forests have grown age after age along the river banks.
Similar Expressions: Continuously over time / Through centuries
19. Until the stars fall from the sky
Definition: This means holding a feeling or promise endlessly into the vast future.
Used in a Sentence: She promised to care for her pet dog until the stars fall from the sky. / Our friendship will stay strong until the stars fall from the sky.
Similar Expressions: Everlastingly / Without end
20. Until the final curtain
Definition: This means remaining involved until the very last moment of a situation.
Used in a Sentence: The team played hard on the soccer field until the final curtain. / He stayed focused on his stage performance until the final curtain.
Similar Expressions: To the very end / Until the close
21. For a month of Sundays
Definition: This means an unexpectedly long period that seems to drag on forever.
Used in a Sentence: I have not seen my elementary school teacher for a month of Sundays. / We waited for a month of Sundays to hear the contest results.
Similar Expressions: For a huge length of time / For ages
22. In perpetuity
Definition: This means legally or officially lasting forever without an expiration date.
Used in a Sentence: The land was granted to the city park system in perpetuity. / The foundation funds scholarships for deserving students in perpetuity.
Similar Expressions: Permanently / Endlessly into the future
23. From time immemorial
Definition: This means existing for so long that nobody can remember when it first started.
Used in a Sentence: People have celebrated the spring festival from time immemorial. / Wild horses have roamed these high mountain plains from time immemorial.
Similar Expressions: From ancient times / Since time began
24. Bound for eternity
Definition: This means heading toward a state that will never run out or end.
Used in a Sentence: The spacecraft traveled past distant planets, bound for eternity. / Their names were carved in the stone arch, bound for eternity.
Similar Expressions: Everlasting / Heading into infinity
25. Till the end of the chapter
Definition: This means staying until a complete section or era of life finishes.
Used in a Sentence: He worked at the family bakery till the end of the chapter. / We stayed in the old neighborhood till the end of the chapter.
Similar Expressions: To the conclusion / Until finished
26. For an eternity
Definition: This means a stretch of time that feels like it will never stop moving.
Used in a Sentence: Standing in the dentist waiting room felt like waiting for an eternity. / The last two minutes of the close basketball game lasted for an eternity.
Similar Expressions: Seemingly forever / Infinite time
27. On and on without end
Definition: This means continuing in a continuous loop without any stopping point.
Used in a Sentence: The winding dirt road went on and on without end through the forest. / Her long list of daily chores seemed to go on and on without end.
Similar Expressions: Never stopping / Ceaselessly
28. Set in granite
Definition: This means something is so firm and established that it will last endlessly.
Used in a Sentence: His choice to join the track team was set in granite. / The school rules about safety are set in granite for everyone.
Similar Expressions: Permanently set / Completely fixed
29. Till the last drop
Definition: This means continuing an experience fully until nothing at all is left.
Used in a Sentence: We enjoyed our summer vacation at the beach till the last drop. / She squeezed fun out of her birthday party till the last drop.
Similar Expressions: To the absolute end / Fully to the conclusion
30. Until the crack of doom
Definition: This means waiting or lasting until the very end of everything.
Used in a Sentence: He swore he would protect the secret town map until the crack of doom. / You could sit on the porch until the crack of doom waiting for that bird.
Similar Expressions: Forever / Until time ends
31. Beyond time
Definition: This means existing outside normal years and lasting without growing old.
Used in a Sentence: The classic fairy tale has a charm that exists beyond time. / The beauty of the grand mountain range feels beyond time.
Similar Expressions: Timeless / Everlasting
32. From sunrise to eternity
Definition: This means starting right now and continuing into the endless future.
Used in a Sentence: Their family bond remained steady from sunrise to eternity. / The golden monuments seemed built to last from sunrise to eternity.
Similar Expressions: Eternally forward / Forevermore
33. Till the seas run dry
Definition: This means lasting for an insanely long time that seems completely impossible.
Used in a Sentence: I will love my baby brother till the seas run dry. / They pledged to stay best friends till the seas run dry.
Similar Expressions: Without end / Forever and ever
34. To the grave
Definition: This means carrying a secret, promise, or feeling for the rest of your life.
Used in a Sentence: He took the secret hiding place of the treasure to the grave. / She kept her vow of silence on the matter all the way to the grave.
Similar Expressions: For life / Until death
35. Built to last
Definition: This means made so sturdily that it will endure far into the future without breaking.
Used in a Sentence: This antique wooden dining table was truly built to last. / Our brick house survived the strong storm because it was built to last.
Similar Expressions: Extremely durable / Long lasting
36. Till the last breath
Definition: This means holding onto a belief or effort until life fully concludes.
Used in a Sentence: The brave soldier defended his homeland till the last breath. / She cheered for her favorite team till the last breath of the match.
Similar Expressions: Until the very end / Life long
37. Outlast the mountains
Definition: This means enduring longer than even the oldest physical structures on earth.
Used in a Sentence: Great literature can outlast the mountains and speak to new readers. / True kindness leaves a positive mark that can outlast the mountains.
Similar Expressions: Endure endlessly / Last forever
38. Continuous as the stars
Definition: This means shining or appearing constantly without ever taking a break.
Used in a Sentence: Her cheerful smile was as continuous as the stars in the night sky. / The flow of water from the spring was continuous as the stars.
Similar Expressions: Never ending / Unbroken
39. Till time stands still
Definition: This means continuing on until time itself ceases to move forward.
Used in a Sentence: I could listen to my grandmother’s old stories till time stands still. / They danced together at the wedding party till time stands still.
Similar Expressions: Endlessly / Into infinity
40. Lock away forever
Definition: This means putting something in a secure spot so it never comes out again.
Used in a Sentence: He wanted to lock away the embarrassing photograph forever. / She locked away her old diary in a metal box forever.
Similar Expressions: Hide permanently / Store away for good
41. Etched in history
Definition: This means remembered by people forever because of a major achievement.
Used in a Sentence: The moon landing was a great moment etched in history. / Her record-breaking swim became forever etched in history.
Similar Expressions: Permanently remembered / Famous for all time
42. Till the day is done
Definition: This means working or staying active through the whole duration until the end.
Used in a Sentence: The farmers worked in the corn fields till the day was done. / We played on the playground swings till the day was done.
Similar Expressions: Until the end of the day / To the conclusion
43. Everlasting as the hills
Definition: This means firm, peaceful, and permanent like ancient landscape features.
Used in a Sentence: The peace in the remote valley felt everlasting as the hills. / Their family traditions seemed everlasting as the hills.
Similar Expressions: Completely permanent / Enduring
44. Till the cows leap over the moon
Definition: This means a length of time so long or wild that it reaches into fantasy.
Used in a Sentence: You can wish for a pony till the cows leap over the moon, but we live in an apartment. / He can practice his jump shot till the cows leap over the moon.
Similar Expressions: For an impossible length / Indefinitely
45. Without a finish line
Definition: This means an activity or effort that keeps going with no set ending point.
Used in a Sentence: Learning new things in life is a journey without a finish line. / Improving your art skills feels like a race without a finish line.
Similar Expressions: Endless process / Ongoing forever
46. To infinity and beyond
Definition: This means reaching out into an endless distance or infinite duration of time.
Used in a Sentence: The space explorer pointed his toy ship to infinity and beyond. / Our big dreams for the future stretch to infinity and beyond.
Similar Expressions: Boundlessly / Into endless space
47. Till the final tick of the clock
Definition: This means staying determined until the very last second runs out completely.
Used in a Sentence: Our team fought for the ball till the final tick of the clock. / She kept checking her test answers till the final tick of the clock.
Similar Expressions: To the last second / Until time expires
48. Constant as the northern star
Definition: This means completely reliable, fixed, and unchanging through time.
Used in a Sentence: Her mother’s support was as constant as the northern star. / His daily morning jog was constant as the northern star.
Similar Expressions: Unchanging / Unwavering
49. Into the sunset of time
Definition: This means traveling forward into the deep, distant future without stopping.
Used in a Sentence: The old stories sailed away into the sunset of time. / The legacy of the hero faded softly into the sunset of time.
Similar Expressions: Into the far future / Forever forward
50. Stamp for eternity
Definition: This means making a permanent mark on something that can never be erased.
Used in a Sentence: His artistic masterpiece left a stamp for eternity on the town. / The discovery stamped her name for eternity in the science books.
Similar Expressions: Mark permanently / Fix forever
Exercise to Practice
- Keeping a toy for keeps means you must return it to your friend tomorrow morning.
- If something is written in stone, it is fixed permanently and cannot be changed.
- Waiting for a month of Sundays means the time passed by extremely quickly in two seconds.
- Working till the cows come home means continuing an activity for a very long time.
- Leaving a location for good means you plan on moving back there next week.
- Doing a task until the end of time means you will finish it in just five minutes.
- If a decision is set in granite, it is completely firm and permanent.
- Waiting till kingdom come means waiting for a very short period of time.
- An activity without a finish line has no set ending point and keeps going on.
- Taking a secret to the grave means sharing it with everyone at school today.
- Something built to last is made so sturdily that it endures far into the future.
- Being as constant as the northern star means you are constantly changing your mind.
- Waiting till the final tick of the clock means staying engaged until the last second expires.
- An event etched in history will be remembered by people forever.
- Waiting forever and a day describes a very short wait that ends instantly.
Answer Key
- False
- True
- False
- True
- False
- False
- True
- False
- True
- False
- True
- False
- True
- True
- False
Conclusion
Learning these idioms for forever is a wonderful way to expand your vocabulary and speak English more creatively. Knowing these sayings allows you to describe long time periods, permanent choices, and endless situations with colorful detail.
Try using a few of these expressions next time you write a story or chat with friends about the future. Practicing them in everyday conversations will help you remember their meanings easily!
Frequently Asked Questions
What are some common idioms for forever?
Some of the most popular idioms for forever include for good, til the cows come home, and until the end of time. Phrases like forever and a day or written in stone are also used frequently in daily conversation. They help describe long stretches of time in creative ways.
Why do people use idioms to describe things that last forever?
Idioms help turn abstract ideas like endless time into clear, visual pictures that are easy to imagine. Saying something will last til the cows come home or until the stars fall from the sky makes speech much more expressive than just saying forever. It adds emotion and emphasis to your words.
Can I use these idioms for forever in my school writing assignments?
Yes, using these expressions can make your creative stories, book reports, and personal narratives much more interesting to read. They help show long passage of time or deep commitment clearly. Just make sure the idiom fits the tone of your assignment.
What is the difference between for keeps and for good?
While both mean permanently, for keeps usually refers to taking or keeping an object forever rather than returning it. For good usually refers to a state, action, or relocation that will not be reversed. Both emphasize that something will not change back.
How can I practice using these idioms for forever?
You can practice by picking two or three idioms to use in your daily conversations or story writing. You can also review the example sentences and practice quiz in this article to test your memory. Consistent practice will help these phrases feel natural to use.
