تأكد

تَأَكَّدَ \ make certain, make sure: to satisfy oneself: She made sure that the door was locked. \ See Also تثبت من (تثبّتَ مِن)‏ \ تَأَكَّدَ مِن \ check up: to make a check: The doors are probably locked, but you had better check up. \ تَأَكَّدَ مِن صِحَّة شيء \ verify: to make sure that sth. is true: Verify that report before you print it.