From Longman Dictionary of Contemporary Englishcheck on somebody/something phrasal verb1 CHECK/MAKE SUREto make sure that someone or something is safe, is in a satisfactory state, or is doing what they should be doing Honey, can you go upstairs and check on the kids? My neighbour comes in once a week to check on things and feed the fish.2 to try to find out if something is true or correct He wanted to check on the girl’s story. → check→ See Verb table
