·noun An oarsman; a rower; as, he is a good oar.
II. Oar ·vt & ·vi To Row.
III. Oar ·noun An oarlike swimming organ of various invertebrates.
IV. Oar ·noun 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.