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log

nounverbnounverbverbverbnounnouncommon in dialogue

  • United Kingdom//lɒɡ//
  • United States//lɔɡ//
  • //lɑɡ//

The trunk of a dead tree, cleared of branches.

noun

  1. 1

    The trunk of a dead tree, cleared of branches.

    They walked across the stream on a fallen log.

  2. 2

    Any bulky piece as cut from the above, used as timber, fuel etc.

    Why do you look at the speck that is in your brother's eye, but do not notice the log that is in your own eye? Or how can you say to your brother, "Let me take the speck out of your eye," and behold, the log is in your own eye? You hypocrite, first take the log out of your own eye, and then you will see clearly to take the speck out of your brother's eye.

  3. 3

    A unit of length equivalent to 16 feet, used for measuring timber, especially the trunk of a tree.

  4. 4

    figurativeAny cylinder; anything shaped like a tree log, particularly

    3. An apparatus for cutting a log of paper or the like into a plurality of sections of predetermined length[.]

    Dip both sides in the sauce on the plate and then arrange a log of cheese filling down the middle of the tortilla.

    2. Apply a light film of hand balm in the mold. Roll a log of metal clay and press it into the mold channel (b).

  5. 5

    figurativeAny cylinder; anything shaped like a tree log A rolled cake with filling.

  6. 6

    figurativeAny cylinder; anything shaped like a tree log A solid and long piece of feces.

  7. 7

    figurativeAny cylinder; anything shaped like a tree log The penis.

  8. 8

    A floating device, usually of wood, used in navigation to estimate the speed of a vessel through water.

  9. 9

    figurativeA blockhead; a very stupid person.

  10. 10

    slangA heavy longboard.

    I know [Buddy] hadn't surfed on a log much in his childhood, but he must've been watching them Makaha rippah's.

  11. 11

    A weight or block near the free end of a hoisting rope to prevent it from being drawn through the sheave.

Etymology

From Middle English logge, logg (first recorded in Anglo-Latin as loggum), of uncertain origin, but probably from Old Norse lóg, lág (“felled tree, log”), derived from Old Norse liggja (“to lie”). If so, then cognate with Norwegian låg (“fallen tree”), Dutch loog (“wood, timber, lumber”). Alternatively, directly from Norwegian låg (“fallen tree”), which could have been borrowed through the Norwegian timber trade. However the Old Norse/Middle Norwegian vowel is long while Middle English vowel is short.

verb

  1. 1

    To cut trees into logs.

  2. 2

    To cut down (trees).

    Since the mid-1980s, when Indonesia first began to clear its bountiful forests on an industrial scale in favour of lucrative palm-oil plantations, “haze” has become an almost annual occurrence in South-East Asia. The cheapest way to clear logged woodland is to burn it, producing an acrid cloud of foul white smoke that, carried by the wind, can cover hundreds, or even thousands, of square miles.

  3. 3

    To cut down trees in an area, harvesting and transporting the logs as wood.

noun

  1. 1

    A logbook, or journal of a vessel's (or aircraft's) progress.

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

    The scientific instruments of the day recorded rapid fluctuations in the Earth's magnetic field, as powerful electrical currents flowed through the upper atmosphere. Ships' logs noted observations of the northern lights as far south as the Caribbean, and telegraph systems across the world were disrupted as electrical currents were induced in the copper lines.

  2. 2

    A chronological record of actions, performances, computer/network usage, etc.

  3. 3

    Specifically, an append-only sequential record of events written to a file, display, or other data stream.

Etymology

Clipping of logbook, itself from log (etymology 1) + book, from a wooden float (chip log) used to measure speed.

verb

  1. 1

    To make, to add an entry (or more) in a log or logbook.

    to log the miles travelled by a ship

  2. 2

    To travel (a distance) as shown in a logbook.

  3. 3

    To travel at a specified speed, as ascertained by a chip log.

verb

  1. 1

    To log out; to disconnect from an online video game.

    A few times a year, the yeshiva held study competitions to see who could log the most hours learning, and students would study for hours and hours without stopping for anything.

    You only won that game because your last opponent logged. That's no fair!

Etymology

Ellipsis of log out, itself from Etymology 2.

verb

  1. 1

    obsoleteTo move to and fro; to rock.

noun

  1. 1

    historicalA Hebrew unit of liquid volume (about ¹⁄₃ liter).

    ...and one log of oil...

Etymology

From Hebrew לֹג.

noun

  1. 1

    Synonym of logarithm.

    To multiply two numbers, add their logs.

  2. 2

    A difference of one in the logarithm, usually in base 10; an order of magnitude.

    During the first 24 hr, however, titers of the lightly piliated organisms in the kidney increased by 4 logs, whereas the heavily piliated P. mirabilis were virtually all eliminated.

Etymology

A clipping of logarithm.

Forms

plural
logs
past tense
logged
past participle
logged
present participle
logging
third person singular
logs
The neighbouring pagesAlphabetical order follows the rules of the language, not byte values: an accent decides only between two otherwise identical words, and Spanish files Ñ as a letter of its own.

Lexical content from Wiktionary, under CC BY-SA 4.0 · Source entry · Data version 2026-08-23

Rank among the words of the OpenSubtitles 2018 corpus — film and television subtitles, so spoken rather than written usage (CC BY-SA 3.0).