Nearby words

  1. lofting,
  2. lofting iron,
  3. lofting, hugh,
  4. loftsman,
  5. lofty,
  6. log book,
  7. log chip,
  8. log in,
  9. log jam,
  10. log line

Origin of log

1350–1400; Middle English logge, variant of lugge pole, limb of tree; compare obsolete logget pole; see lugsail, logbook

Related formslog·gish, adjectiveun·logged, adjective


[ lawg, log ]
/ lɔg, lɒg /


Mathematics. logarithm.



variant of logo- before a vowel: logarithm.


variant of -logue: analog. Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for log

British Dictionary definitions for log


/ (lɒɡ) /


verb logs, logging or logged

Word Origin for log

C14: origin obscure


short for logarithm


combining form

a US variant of -logue
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for log
Online Etymology Dictionary, © 2010 Douglas Harper

Science definitions for log


[ lôg ]

A logarithm.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

Idioms and Phrases with log


In addition to the idiom beginning with log

  • log in

also see:

  • easy as pie (rolling off a log)
  • like a bump on a log
  • sleep like a log
The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.