1) the instrument or means of trying or judging anything
1a) the rule by which one judges
2) the place where judgment is given
2a) the tribunal of a judge
2b) a bench of judges
3) the matter judged, thing to be decided, suit, case
Part of Speech: noun neuter
Citing in TDNT: 3:943, 469
Neuter of a presumed derivative of G2923; a rule of judging ("criterion"), that is, (by implication) a tribunal: - to judge, judgment (seat).
|a court of justice||56.1|
These two sites give similar information, with the definition from several dictionaries and statistics on the use of the word.
Perseus Digital Library
University of Chicago's Logion lexicon
Thayer's dictionary plus other information.
From this site's dictionary (in Italian)
Click on the first column to search for that word as a form of the root κριτήριον; click on the second column to search for that grammatical form of the root κριτήριον; click on the third column to search for that word and grammatical form; click on the total to search for the root κριτήριον.