log vs log line

log and log line both are nouns.

Word	Noun	Adjective	Verb	Adverb
log	Yes	No	Yes	No
log line	Yes	No	No	No

log (noun)	log line (noun)
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	a knotted cord that runs out from a reel to a piece of wood that is attached to it
a written record of events on a voyage (of a ship or plane)
the exponent required to produce a given number
a written record of messages sent or received
a segment of the trunk of a tree when stripped of branches

log (verb)	log line (verb)
enter into a log, as on ships and planes
cut lumber, as in woods and forests