check up on

Verb

1.

check up on - examine so as to determine accuracy, quality, or condition; "check the brakes"; "Check out the engine" Synonyms: check, check into, check out, check over, suss out, go over, look into

analyse, analyze, canvas, canvass, check, check into, check off, check out, check over, examine, follow, go over, keep an eye on, look into, mark, mark off, observe, study, suss out, tick, tick off, watch, watch over