n. A bulky piece or stick of unhewn timber; a length of wood as cut from the trunk or a large limb of a tree; specifically, an unsplit stick of timber with butted ends ready for sawing.n. Figuratively, a dull, heavy, stolid, or stupid person.Constructed of logs; consisting of logs: as, a log cabin; a log fort or bridge.To cut into logs.To cut down trees and get out logs from the forest for sawing into boards, etc.: as, to engage in logging.n. Nautical, an apparatus for measuring the rapidity of a ship's motion.n. Hence The record of a ship's progress, or a tabulated summary of the performance of the engines and boilers, etc.; a log-book.To record or enter in the log-book.To exhibit by the indication of the log, as a rate of speed by the hour: as, the ship logs ten knots.To move to and fro; rock. See logging-rock.n. A Hebrew liquid measure, the seventy-second part of a bath, or about a pint. It seems to have been of Babylonian origin, being one sixtieth of a maxis.n. The abbreviation of logarithm. Thus, log. 3 = 0.4771213 is an equation giving the value of the logarithm of 3.n. plural A jail (formerly built of logs).n. n. In tailoring, a document which fixes the time to be credited to journeymen for making a specified kind of garment, the men being paid nominally by the hour. N. E. D. Also attributive: as, a log shop.Nautical, to enter in a log-book the name of a man, with his offense and the penalty attached to it; hence, to fine.