"ACE" means , a nasa spacecraft. It is one of many casual words teens pick up from friends, social media, music or sport, and on its own it carries no particular warning. If you hear your teen use it, it is fair to ask what they mean by it in their friend group, since meanings drift quickly. Asking out of curiosity rather than alarm tends to keep the conversation open and useful.
ACE
(astronautics) , a NASA spacecraft.
Etymology timeline
Born ~1997 · no dated citations yetMillennial / early-internet eraSee decade cohort →
Seen in the wild
Firecrawl: Ace - Wikipedia
[Jump to content](https://en.wikipedia.org/wiki/Ace#bodyContent) From Wikipedia, the free encyclopedia Playing card For other uses, see [Ace (disambiguation)](https://en.wikipedia.org/wiki/Ace_(disambiguation) "Ace (d…
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Firecrawl: Take The ACE Quiz — And Learn What It Does And Doesn't Mean
Now what?** ### [What Shapes Health](https://www.npr.org/series/389312217/what-shapes-health) # Take The ACE Quiz — And Learn What It Does And Doesn't Mean March 2, 20152:57 PM ET By Laura Starecheski An ACE score is…
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Definitions
Global
#1·Apr 27, 2026Global
(astronautics) , a NASA spacecraft.
For parents
"ACE" means , a nasa spacecraft. It is one of many casual words teens pick up from friends, social media, music or sport, and on its own it carries no particular warning. If you hear your teen use it, it is fair to ask what they mean by it in their friend group, since meanings drift quickly. Asking out of curiosity rather than alarm tends to keep the conversation open and useful.
For ESL learners
"ACE" is informal English meaning , a nasa spacecraft. It is used widely across English varieties. A more formal or neutral equivalent would be something like "" expressed in standard vocabulary. A common mistake is to assume "ACE" can replace its standard equivalent in every register; keep it for spoken or casual situations and use the formal form in writing. If you are a B2 or C1 learner, it is useful to recognise this word when you hear or read it, but think carefully about whether the situation really calls for it before using it yourself.
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Global
#2·Apr 27, 2026Global
(cinema) A member of American Cinema Editors.
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Global
#3·Apr 27, 2026Global
(file format) A proprietary data compression archive file format.
Origin: c. 1300, "one at dice," from Old French as "one at dice" (12c.), from Latin as "a unit, one, a whole, unity;" also the name of a small Roman coin (originally a rectangular bronze plaque weighing one pound, it eventually was reduced by depreciation to half an ounce; in imperial times it became a round coin). The Latin word also is the source of Spanish as, Italian asso, German ass, Dutch aas, Danish es. It is perhaps originally Etruscan and related to Greek heis "one" (from PIE root \*sem- (1) "one, as one"), or it might have been taken directly into Latin from the Greek word. In English, it me
Heard in the wild
“[Jump to content](https://en.wikipedia.org/wiki/Ace#bodyContent) From Wikipedia, the free encyclopedia Playing card For other uses, see [Ace (disambiguation)](https://en.wikipedia.org/wiki/Ace_(disambiguation) "Ace (disambiguation)").”
“Now what?** ### [What Shapes Health](https://www.npr.org/series/389312217/what-shapes-health) # Take The ACE Quiz — And Learn What It Does And Doesn't Mean March 2, 20152:57 PM ET By Laura Starecheski An ACE score is a tally of different types of abuse, neglect, and other hallmarks of a rough childhood.”
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For specific readers
Why is this section here?
Slang is read by different audiences for very different reasons. The For parents view re-explains the term in plain, non-judgemental language so a caregiver can understand what their child means without needing the surrounding subculture. The For English learners view focuses on register (when it's safe to use), formal alternatives, and common mistakes — what a textbook won't teach you.
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Other words near "ACE" (A)
accy kingaccy maxxingaccy modeaccy queenaccy sznAC/DCace boon coonaceboyace checkace codedace energyaceggot
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