fill something in
Proposed by a contributor, not yet supported by evidence.
Meaning · English
to complete a form or document with information
Literally: to fill a space with something
Register: neutral
Examples
Please fill in the application form carefully.
AI-drafted example auto-approved by rule (illustrative, not a corpus attestation)
Sources & notes
Everyday learner phrase (CEFR A2); level cross-referenced from published learner lists. Definition pending editorial review. Definition drafted by AI (@cf/meta/llama-3.3-70b-instruct-fp8-fast) and auto-approved by rule on 2026-08-01; pending editor spot-check.
Common questions
What does “fill something in” mean?
to complete a form or document with information Literally: to fill a space with something
Is “fill something in” formal or informal?
fill something in is generally neutral.