Nouns

(n)loga segment of the trunk of a tree when stripped of branches
(n)logarithm, logthe exponent required to produce a given number
(n)loga written record of messages sent or received“they kept a log of all transmission by the radio station”, “an email log”
(n)loga written record of events on a voyage (of a ship or plane)
(n)logmeasuring 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

Verbs

(v)logenter into a log, as on ships and planes
(v)log, lumbercut lumber, as in woods and forests