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to ascertain
01
to determine something with certainty by careful examination or investigation
02
be careful or certain to do something; make certain of something
03
to discover and verify a fact or a piece of information
04
find out, learn, or determine with certainty, usually by making an inquiry or other effort
Example
The detective ascertained the identity of the culprit through fingerprint analysis.
We are ascertaining the availability of resources.
The doctor ascertained the diagnosis by performing various medical tests.
I ascertain the facts before making a decision.
By conducting experiments, scientists ascertained the effectiveness of the new drug.
