(v. t. & i.)
An oarsman; a rower; as, he is a good oar.
An oarlike swimming organ of various invertebrates.
An implement for impelling a boat, being a slender piece of timber, usually ash or spruce, with a grip or handle at one end and a broad blade at the other. The part which rests in the rowlock is called the loom.
Webster's Revised Unabridged Dictionary (1913), edited by Noah Porter. About
cock (zo?l), the water rail. [prov. eng.]..
to put in one`s oar
to feather an oar
to double-bank an oar