Symbol

1. logarithm

   if $x=b^y$ then $log\_\{b\}(x)=y$

Etymology 1

Noun

1. The trunk of a dead tree, cleared of branches.

   They walked across the stream on a fallen log.

2. Any bulky piece as cut from the above, used as timber, fuel etc.
3. A chip log, a device used in navigation to estimate the speed of a vessel through water.
4. A logbook.
5. A blockhead, very dumb person.
6. A longboard.

   I know he hadn’t surfed on a log much in his childhood — Neal Miyake 1999 http://www.iav.com/~sponge/sesh/new2/sesh213.htm

7. A rolled cake with filling; Swiss roll.

Verb

1. To cut trees into logs
2. To cut down (trees).
3. To travel at a specified speed, as ascertained by log chip
4. To cut down trees in an area, harvesting and transporting the logs as wood

Noun

1. A logbook, or journal of a vessel (or aircraft)'s progress
   • 1883: Robert Louis Stevenson, Treasure Island

     The captain sat down to his log, and here is the beginning of the entry:...

2. A record of performance etc.

Verb

1. To make, to add an entry (or more) in a log(book).
2. To travel (a distance) as shown in a logbook

Related terms