■ verb
1》 make or become full.
↘block up (a hole, gap, etc.).
↘(of a sail) curve out tautly from its supports as the wind blows into it.
2》 pervade (a place or the air).
↘cause to experience a feeling.
3》 appoint a person to (a vacant post).
↘hold and perform the duties of (a post or role).
4》 occupy (a period of time).
5》 satisfy (a need).
↘ chiefly N. Amer. be supplied with the items in (a prescription or order).
■ noun
1》 ( one's ~ ) as much as one wants or can bear.
2》 an amount that is enough to ~ something.
↘material which ~s a space, especially in construction work.
3》 (in popular music) a short interjected instrumental phrase.
Phrases
~ someone's shoes (or boots ) informal take over someone's role and fulfil it satisfactorily.
Phrasal verbs
~ in act as a substitute.
~ someone in give someone information.
~ something in
1》 Brit. add information to complete a form or document.
2》 complete a drawing by adding colour or shade to the spaces within an outline.
~ out put on weight.
~ something out add information to complete a form or document.
↘give more details about something.
Origin
OE fyllan (v.), fyllu (n.), of Gmc origin; related to full 1 .