- log
- I
[[t]lɔg, lɒg[/t]]n. v. logged, log•ging1) a portion or length of the trunk or of a large limb of a felled tree2) something inert, heavy, or not sentient3) navig. a record concerning details of the trip of a ship or aircraft4) mac a register of the operation of a machine5) any of various detailed, usu. sequential records, as of the progress of an activity6) sbz a written account of everything transmitted by a radio or television station or network7) naut. navig. any of various devices for determining the speed of a ship8) to cut (trees) into logs9) to cut down the trees or timber on (land)10) to enter in a log; compile11) aer. to make (a certain speed), as a ship or airplane:to log 18 knots[/ex]12) trs to travel for (a certain distance or a certain amount of time), according to the record of a log:He has logged 10,000 hours flying time[/ex]13) to cut down trees and get out logs from the forest for timber14) phv+cmp log in or on, to gain access to a secured computer system or online service by keying in personal identification information15) phv cmp log off or out, to terminate a session on such a system or service•Etymology: 1350–1400; ME logge unshaped piece of wood (of obscure orig.); (defs. 4-9) shortening of logbook log′gish, adj. IIlog[[t]lɔg, lɒg[/t]] n.math.logarithm
From formal English to slang. 2014.