ON EITHER TACK. Any way or every way; a colloquialism.
ON END. The same as [an-end] (which see). Top-masts and topgallant-masts are on end, when they are in their places, and sail can be set on them.
ONE O'CLOCK. Like one o'clock. With speed; rapidly.
ONERARIÆ. Ancient ships of burden, with both sails and oars.
ONE, TWO, THREE! The song with which the seamen bowse out the bowlines; the last haul being completed by belay O!
ONION-FISH. The Cepola rubescens, whose body peels into flakes like that vegetable. It is of a pale red colour.
ON SERVICE. On duty.
ON-SHORE WINDS. Those which blow from the offing, and render bays uncomfortable and insecure.
ON THE BEAM. Implies any distance from a ship on a line with her beams, or at right angles with the keel.
ON THE BOW. At any angle on either side of the stem up to 45°; then it is either four points on the bow, or four points before the beam.