Webster's Revised Unabridged Dictionary · 1913

canon

canon (kan"un) , noun

[Old English canon, canoun, Anglo-Saxon canon rule (compare French canon, Late Latin canon, and, for sense 7, French chanoine, Late Latin canonicus), from Latin canon a measuring line, rule, model, from Greek kanw`n rule, rod, from ka`nh, ka`nnh, reed. See Cane, and compare Canonical.]

1.
A law or rule.
Or that the Everlasting had not fixed His canon 'gainst self-slaughter. — Shakespeare
2.
(Ecclesiastical) A law, or rule of doctrine or discipline, enacted by a council and confirmed by the pope or the sovereign; a decision, regulation, code, or constitution made by ecclesiastical authority.
Various canons which were made in councils held in the second centry. — Hook
3.
The collection of books received as genuine Holy Scriptures, called the sacred canon, or general rule of moral and religious duty, given by inspiration; the Bible; also, any one of the canonical Scriptures. See Canonical books, under Canonical, a.
4.
In monasteries, a book containing the rules of a religious order.
5.
A catalogue of saints acknowledged and canonized in the Roman Catholic Church.
6.
A member of a cathedral chapter; a person who possesses a prebend in a cathedral or collegiate church.
7.
(Music) A musical composition in which the voices begin one after another, at regular intervals, successively taking up the same subject. It either winds up with a coda (tailpiece), or, as each voice finishes, commences anew, thus forming a perpetual fugue or round. It is the strictest form of imitation. See Imitation.
8.
(Printing) The largest size of type having a specific name; -- so called from having been used for printing the canons of the church.

[See Illust. of Bell.]

9.
The part of a bell by which it is suspended; -- called also ear and shank. — Knight
10.
(Billiards) See Carom.
Collocations (9)
Apostolical canons , See under Apostolical.
Augustinian canons or Black canons , See under Augustinian.
Canon capitular or Canon residentiary , a resident member of a cathedral chapter (during a part or the whole of the year).
Canon law , See under Law.
Canon of the Mass (Roman Catholic Church) , that part of the mass, following the Sanctus, which never changes.
Honorary canon , a canon{6} who neither lived in a monastery, nor kept the canonical hours.
Minor canon (Ch. of Eng.) , one who has been admitted to a chapter, but has not yet received a prebend.
Regular canon (Roman Catholic Church) , one who lived in a conventual community and followed the rule of St. Austin; a Black canon.
Secular canon (Roman Catholic Church) , one who did not live in a monastery, but kept the hours.

Cañon (ka*nyon"; anglicized kan"yun) , noun

[Sp., a tube or hollow, from caña reed, from Latin canna. See Cane.]

A deep gorge, ravine, or gulch, between high and steep banks, worn by water courses. [Mexico & Western United States]

Also: canyon