bubble in
In real, traceable use. Part of the curated seed collection; community review is coming.
Meaning · English
To mark a response on a form, particularly on a multiple-choice exam, by filling in a circular area (‘bubble’).
Where it’s used:
Used
American English
Examples
Once you’ve answered all of the questions on one or two pages, bubble in your answers before turning the page.
Usage example from English Wiktionary (CC BY-SA 4.0, retrieved 2026-07-30)
Sources & notes
Adapted from English Wiktionary (CC BY-SA 4.0, retrieved 2026-07-30 via kaikki.org).
Common questions
What does “bubble in” mean?
To mark a response on a form, particularly on a multiple-choice exam, by filling in a circular area (‘bubble’).
Is “bubble in” formal or informal?
No register label has been reviewed yet — treat it as neutral and check the usage notes above.