fail
In real, traceable use. Part of the curated seed collection; community review is coming.
Sense 1
Meaning · English
A failure (something incapable of success).
Register: slang
Where it’s used:
Used
American English
Sources & notes
Adapted from English Wiktionary (CC BY-SA 4.0, retrieved 2026-07-30 via kaikki.org).
Sense 2
Meaning · English
Poor quality; substandard workmanship.
Register: slang
Sources & notes
Adapted from English Wiktionary (CC BY-SA 4.0, retrieved 2026-07-30 via kaikki.org).
Common questions
What does “fail” mean?
A failure (something incapable of success).
Is “fail” formal or informal?
fail is generally slang.