ascertain
//ˌæs.ɚˈteɪn//
Verb
ascertainInfinitive
ascertainPresent tense
ascertainedPast tense
ascertainedPast participle
ascertainingPresent participle
ascertainsThird-person singular
1
To find out or learn something with certainty through examination or investigation.
The detective worked hard to ascertain the truth behind the incident.
2
To make certain or establish as true through careful inquiry.
The detective worked to ascertain the facts of the case.