Pronunciation: [ krahy-teer-ee-uhn ]
Definition: noun
a standard of judgment or criticism; a rule or principle for evaluating or testing something

Origin: Early 17th century; Greek
Etymology: from Greek kritērion ‘means of judging’, from kritēs (critic)
Usage:

Synonyms:
benchmark
norm
precedent
principle
proof
yardstick
Antonyms:
change
conjecture
guess
possibility
Example: The teacher requested that the students check the criterion before submitting their assignment.