Ascertain - Definition

v 1: 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" [syn: determine, find, find out, ascertain]
2: 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" [syn: see, check, insure, see to it,
ensure, control, ascertain, assure]
3: 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"
[syn: determine, check, find out, see, ascertain,
watch, learn]
4: learn or discover with certainty