cog

As a noun galley

is (nautical) a long, slender ship propelled primarily by oars, whether having masts and sails or not; usually referring to rowed warships used in the mediterranean from the 16th century until the modern era.

As a symbol cog is

the iso 3166-1 three-letter (alpha-3) code for the republic of the congo.

As nouns the difference between cog and carrack

is that cog is a ship of burden, or war with a round, bulky hull while carrack is a large European sailing vessel of the 14th to 17th centuries similar to a caravel but square-rigged on the foremast and mainmast and lateen-rigged on the mizzenmast.

As a verb cog

is to furnish with a cog or cogs.

As a verb recognise

is to match something or someone which one currently perceives to a memory of some previous encounter with the same entity.

As a symbol cog is

the iso 3166-1 three-letter (alpha-3) code for the republic of the congo.

In historical terms the difference between cog and gog

is that cog is a ship of burden, or war with a round, bulky hull while gog is Replacement for the word God when swearing, forming vulgar minced oaths originating in the 14th century: by Gog's wounds, Gog's bread...

As a verb cog

is to furnish with a cog or cogs.

As a proper noun Gog is

Gog of Magog, a figure mentioned in the Hebrew Bible in Ezekiel 38 and 39, and identified by many with Satan. See the writings of the Apostle John in Revelation 20:8.