noun

1. a section of the trunk or of a large branch of a felled tree, either in its natural state or cut up for use in building, as firewood, etc.

2. Etymology: because orig. a quadrant of wood

   any of various devices for measuring the speed of a ship
3. a daily record of a ship's speed, progress, etc., and of the events in its voyage; logbook
4. 1. a similar record of an aircraft's flight
   2. a record of a pilot's flying time, experience, etc.
5. any record of progress or occurrences, as on a journey, in an experiment, etc.

Etymology: ME logge, prob. < or akin to ON lāg (Dan laag), felled tree < base of liggia, to lie, akin to OE licgan, to lie

adjective

transitive verb logged, logging log′·ging

1. to saw (trees) into logs
2. ☆ to cut down the trees of (a region) for use as lumber or logs
3. to enter or record in a log
4. to sail or fly (a specified distance)
5. to be credited with a record of (certain accomplishments)

intransitive verb