ascertain
verb(as-cer-tain)
find out, learn, or determine with certainty, usually by making an inquiry or other effort
ascertain
verb(as-cer-tain)
be careful or certain to do something; make certain of something
ascertain
verb(as-cer-tain)
establish after a calculation, investigation, experiment, survey, or study
ascertain
verb(as-cer-tain)
learn or discover with certainty