See Also: ascertain(dictionary)
ascertain(dictionary)

ascertain (oh)



[Date: 1500-1600; Language: Old French; Origin: acertainer, from certain]
formal to find out something
::A postmortem was ordered to try to ascertain the cause of death.
ascertain whether/what/how etc
::Tests were conducted to ascertain whether pollution levels have dropped.
ascertain that
::Police had ascertained that the dead man knew his killer.
ascertain sth from sb/sth
::You should ascertain the level of insurance cover from the car rental company.
-- ascertainable adv