Extended Strong's Greek Lexicon (Abbott-Smith based)
rule
Usage: κανών, -όνος, ὁ (cf. κάννα, and Heb. קָנֶה, a reed), [in LXX: Mic.7:4, Jdth.13:6, 4Ma.7:21 (and in Aq., Psa.19:5, Job.38:5)* ;] __1. a rod or bar (Jth, l.with). __2. a measuring rule; hence, metaph, __3. a rule or standard: Gal.6:16. __4. a limit (RV, province): 2Co.10:13-16. (For the history of the word and esp. its later meanings, see Westc., Canon, App. A; cf. also MM, Exp., xv; Cremer, 744.)† (AS)