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cog 1(kŏg, kôg)
1. One of a series of teeth, as on the rim of a wheel or gear, whose engagement transmits successive motive force to a corresponding wheel or gear.
2. A cogwheel.
3. A subordinate member of an organization who performs necessary but usually minor or routine functions.
[Middle English cogge, probably of Scandinavian origin; akin to Swedish kugg, kugge.]
cog 2(kŏg, kôg)
v. cogged, cog·ging, cogs
To load or manipulate (dice) fraudulently.
To cheat, especially at dice.
An instance of cheating; a swindle.
cog 3(kŏg, kôg)
A tenon projecting from a wooden beam designed to fit into an opening in another beam to form a joint.
tr.v. cogged, cog·ging, cogs
To join with tenons.
[Alteration (influenced by cog) of cock, to join with tenons.]