What does "oar" mean?

Additional senses

1. 2.(Zoöl.) An oarlike swimming organ of various invertebrates. Oar cock (Zoöl), the water rail. [Prov. Eng.] -- Spoon oar, an oar having the blade so curved as to afford a better hold upon the water in rowing. -- To boat the oars, to cease rowing, and lay the oars in the boat. -- To feather the oars. See under Feather., v. t. -- To lie on the oars, to cease pulling, raising the oars out of water, but not boating them; to cease from work of any kind; to be idle; to rest. -- To muffle the oars, to put something round that part which rests in the rowlock, to prevent noise in rowing. -- To put in one's oar, to give aid or advice; -- commonly used of a person who obtrudes aid or counsel not invited. -- To ship the oars, to place them in the rowlocks. -- To toss the oars, To peak the oars, to lift them from the rowlocks and hold them perpendicularly, the handle resting on the bottom of the boat. -- To trail oars, to allow them to trail in the water alongside of the boat. -- To unship the oars, to take them out of the rowlocks.
2. 3.To row. "Oared himself." Shak. Oared with laboring arms. Pope.