ascertain

Từ điển Oxford Advanced Learner 8th

as·cer·tain [ascertain ascertains ascertained ascertaining] BrE [ˌæsəˈteɪn] NAmE [ˌæsərˈteɪn] verb (formal)
to find out the true or correct information about sth
•~ sth It can be difficult to ascertain the facts.
•~ that… I ascertained that the driver was not badly hurt.
•it is ascertained that… It should be ascertained that the plans comply with the law.
•~ what, whether, etc… The police are trying to ascertain what really happened.
•Could you ascertain whether she will be coming to the meeting?
•it is ascertained what, whether, etc… It must be ascertained if the land is still owned by the government.
Derived Words: ↑ascertainable ▪ ↑ascertainment
Verb forms:

Word Origin:
late Middle English (in the sense ‘assure, convince’): from Old French acertener, based on Latin certus ‘settled, sure’.

Example Bank:
•It must be ascertained if the land is still owned by the government.
•It should be ascertained that the plans comply with the law.

• Từ đồng nghĩa / Synonyms:
  determine, check, find out, see, watch, learn, insure, see to it, ensure, control, assure, find