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general::
Phrase(s): test out (of something)
to score high enough on a placement test that one does not need to take a particular course. • I tested out of calculus. • I don’t know enough Spanish to test out., Phrase(s): test something out
to try something out; to test something to see if it works. • I can’t wait to test my new laptop out. • I will test out the new brakes on the car.
McGrawhill's American Idioms And Phrasal Verbs