log meaning and definition

LOG noun

Definition of log (noun)

1. a segment of the trunk of a tree when stripped of branches
2. the exponent required to produce a given number
   • synonyms: logarithm
3. a written record of messages sent or received
   • "they kept a log of all transmission by the radio station"; "an email log"
4. a written record of events on a voyage (of a ship or plane)
5. measuring instrument that consists of a float that trails from a ship by a knotted line in order to measure the ship's speed through the water

LOG verb

Definition of log (verb)

1. enter into a log, as on ships and planes
2. cut lumber, as in woods and forests
   • synonyms: lumber