Pronunciation: /əˈsɝː.tən/
verb to find out or determine with certainty
A1 I need to ascertain the time of the next bus.
A2 She tried to ascertain the truth by asking questions.
B1 The detective ascertained the suspect's alibi.
B2 It is important to ascertain the accuracy of the data before making any conclusions.
C1 The scientist ascertained the validity of the experiment through rigorous testing.
C2 The lawyer ascertained the facts of the case before presenting them in court.
formal The detective needed to ascertain the truth before making any accusations.
informal I need to ascertain if the party is still happening before I head over.
slang I'll just quickly ascertain if she's into me before making a move.
figurative Through introspection, one can ascertain their true desires and goals in life.
ascertained
ascertains
more certain
most certain
ascertain
will ascertain
have ascertained
ascertaining
ascertain
certain
to ascertain
ascertaining
ascertained