• make a formal application or request

Synonyms: put in an application, put in, try, bid, appeal, petition, make an entreaty, sue, register, audition

• be applicable or relevant

Synonyms: be relevant, have relevance to, have a bearing on, bear on, appertain, pertain, relate, concern, be concerned with, have to do with

• put or spread (a substance) on a surface

Synonyms: put on, rub in, spread, smear, cover with, work in

• give one's full attention to a task; work hard

Synonyms: be diligent, be industrious, be assiduous, show commitment, show dedication