dictionary.pt
to ascertain
verbgeneral usecommon/kõʃ.tɐ.ˈtaɾ/cons·ta·tar
Definition
1To find out or learn with certainty; to verify or establish as a fact.
Usage examples
“The police ascertained the identity of the witness.”
“We must ascertain the cause of the problem before proceeding.”
Common combinations
ascertain the truthascertain the factsascertain the causedifficult to ascertain