log

A log is the trunk of a tree minus the branches: logging is cutting down trees. A log is also a written record of something, and logging is keeping such a record.

The first type of log is a tree that's been cut down with the branches stripped. Think of a log cabin: it's made up of logs. Logging is when trees are cut down for lumber. The other type of log is some type of written record or list of messages. A ship captain keeps a log of notes on the ship's status and progress. When you make such a record, you're logging. Logging can be written or orally recorded.

PRIMARY MEANINGS OF: log

1
nv
a segment of the trunk of a tree when stripped of branches
cut lumber, as in woods and forests
2
n
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
3
n
a written record of messages sent or received
4
nv
the exponent required to produce a given number
enter into a log, as on ships and planes
FULL DEFINITIONS OF: log
1

n a segment of the trunk of a tree when stripped of branches

Types:
nurse log
a large decomposing tree trunk that has fallen, usually in a forest; the decaying wood provides moisture and nutrients for a variety of insects and plants
saw log
log large enough to be sawed into boards
Type of:
wood
the hard fibrous lignified substance under the bark of trees

v cut lumber, as in woods and forests

Synonyms:
lumber
Type of:
cut down, drop, fell, strike down
cause to fall by or as if by delivering a blow
2

n 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

Types:
harpoon log
a cylindrical log with a device that registers distance
patent log, screw log, taffrail log
a cigar-shaped log with rotary fins that measure the ship's speed
Type of:
measuring device, measuring instrument, measuring system
instrument that shows the extent or amount or quantity or degree of something
3

n a written record of messages sent or received

“they kept a log of all transmission by the radio station”
“an email log
Type of:
written account, written record
a written document preserving knowledge of facts or events

n a written record of events on a voyage (of a ship or plane)

Type of:
written account, written record
a written document preserving knowledge of facts or events
4

n the exponent required to produce a given number

Synonyms:
logarithm
Types:
common logarithm
a logarithm to the base 10
Napierian logarithm, natural logarithm
a logarithm to the base e
Type of:
exponent, index, power
a mathematical notation indicating the number of times a quantity is multiplied by itself

v enter into a log, as on ships and planes

Type of:
enter, put down, record
make a record of; set down in permanent form
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