noun
Refers to a large mounted gun, often historical or military. The cross-reference to カノン suggests a possible alternative spelling, but キャノン is the standard katakana form for 'cannon'.
See also: カノン
城の前に古いキャノンが置いてある。
An old cannon is placed in front of the castle.
noun
carom; cannon (billiards)
In billiards, a shot where the cue ball strikes two object balls in succession. The cross-reference to キャロム indicates a related term, but キャノン is also used for this billiard shot.
See also: キャロム
彼は見事なキャノンを決めた。
He made a brilliant carom.