fill in (1)
Meaning: If you fill in a form, you complete it by writing in the spaces provided.Synonym: fill out, complete (formal)
- fill sth in Take this form and fill it in with your details.
- fill in sth If you want to get a visa, you'll have to fill in a couple of forms and then they'll give you an interview.
fill in (1): form, spaces, details, missing word, name, address
Note: Both "fill in" and "fill out" can have this meaning, and both are correct.
If you want to get the job, you'll have to fill in the