Synonyms of ascertain

Verb

1. determine, find, find out, ascertain

usage: establish after a calculation, investigation, experiment, survey, or study; "find the product of two numbers"; "The physicist who found the elusive particle won the Nobel Prize"

2. see, check, insure, see to it, ensure, control, ascertain, assure, verify

usage: be careful or certain to do something; make certain of something; "He verified that the valves were closed"; "See that the curtains are closed"; "control the quality of the product"

3. determine, check, find out, see, ascertain, watch, learn

usage: find out, learn, or determine with certainty, usually by making an inquiry or other effort; "I want to see whether she speaks French"; "See whether it works"; "find out if he speaks Russian"; "Check whether the train leaves on time"

4. ascertain, learn, hear, get word, get wind, pick up, find out, get a line, discover, see

usage: learn or discover with certainty

Definition and meaning of ascertain (Dictionary)