log

n.

1. 1. A usually large section of a trunk or limb of a fallen or felled tree.
   2. A long thick section of trimmed, unhewn timber.
2. Nautical.
   1. A device trailed from a ship to determine its speed through the water.
   2. A record of a ship's speed, its progress, and any shipboard events of navigational importance.
   3. The book in which this record is kept.
3. A record of a vehicle's performance, as the flight record of an aircraft.
4. A record, as of the performance of a machine or the progress of an undertaking: a computer log; a trip log.

v., logged, log·ging, logs.

v.tr.

1. 1. To cut down, trim, and haul the timber of (a piece of land).
   2. To cut (timber) into unhewn sections.
2. To enter in a record, as of a ship or an aircraft.
3. To travel (a specified distance, time, or speed): logged 30,000 air miles in April.
4. To spend or accumulate (time): had logged 25 years with the company.

v.intr.
To cut down, trim, and haul timber.

phrasal verbs:

log in or on

1. To enter into a computer the information required to begin a session.

log out or off

1. To enter into a computer the command to end a session.

[Middle English logge.]

log² (lôg, lŏg)
n.
A logarithm.

Record kept of the use of an item, often for internal control purposes. For example, in a computer application, a log may be kept of those using data files, programs, or hardware devices. The log may include information about data, time-in and time-out, the use of the item, and the reason for use.

Idioms beginning with log:
loggerheads
log in

In addition to the idiom beginning with log, also see easy as pie (rolling off a log); like a bump on a log; sleep like a log.

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IN BRIEF: A long piece of a tree trunk. Also: A record of a ship's voyage.

Remember that no one ever kicks a dead log. — Dale Carnegie (1888-1955)

This entry is from Wikipedia, the leading user-contributed encyclopedia. It may not have been reviewed by professional editors (see full disclaimer)

Dansk (Danish)
1.
n. - stamme, tømmerstok, kævle, rundtømmer, rundtræ, brændeknude, brændestykke, logbog, skibsjournal, dagbog
v. tr. - skove, indføre i logbogen, registrere, journalisere, sejle en vis distance
v. intr. - virke et vist tidsrum

idioms:

• like a log    sove som en sten, snorksove
• log book    logbog, skibsjournal, dagbog, journal
• log in    foretage logon
• log into    gå ind i
• log off    foretage logoff
• log on    gå ind i
• log out    foretage logoff

2.
n. - logaritme

Nederlands (Dutch)
boomstam, blok hout, logaritme, logboek, snelheidsmeter van schip, black box van vliegtuig, gegevens in logboek/ register noteren, bepaalde afstand/tijd bereiken, in boomstammen hakken

Français (French)
1.
n. - bûche, rondin, registre, (Naut, Transp) livre de bord, (Comput) carnet d'exploitation
v. tr. - noter (des faits), avoir à son actif (des kilomètres), rouler à (en parlant d'une voiture), voler à (en parlant d'un avion), filer (un bateau)
v. intr. - abattre des arbres

idioms:

• log book    livre de bord, carte grise (d'une voiture)
• log in    (Comput) ouvrir une session, se connecter
• log into    (Comput) entrer dans une base de données, faire entrer
• log off    (Comput) clore une session, se déconnecter
• log on    (Comput) ouvrir une session, se déconnecter
• log out    (Comput) clore une session, se déconnecter

2.
n. - (Math) logarithme

Deutsch (German)
1.
n. - Baumstamm, Klotz, Log(buch)
v. - ins Logbuch eintragen

idioms:

• log book    Logbuch, Bordbuch
• log in    (Comp.) sich anmelden
• log into    eintragen
• log off    abmelden
• log on    anmelden
• log out    (Comp.) sich abmelden

2.
n. - (Math.) Logarithmus

Ελληνική (Greek)
n. - κούτσουρο, δρομόμετρο, ημερολόγιο σκάφους, άδεια κυκλοφορίας (οχήματος)
v. - καταχωρίζω (σε ημερολόγιο κ.λπ.)
abbr. - λογάριθμος

idioms:

• like a log    ακίνητος σαν κούτσουρο
• log book    ημερολόγιο σκάφους
• log in    (Η/Υ) μπαίνω σε δίκτυο
• log into    (Η/Υ) μπαίνω σε δίκτυο
• log off    (Η/Υ) βγαίνω από δίκτυο
• log on    (Η/Υ) μπαίνω σε δίκτυο
• log out    (Η/Υ) βγαίνω από δίκτυο

Italiano (Italian)
ceppo, giornale di bordo, logaritmo

idioms:

• like a log    come un ghiro
• log book    giornale di bordo
• log in/out    azionare il computer
• log into    registrare
• log on/off    azionare il computer

Português (Portuguese)
n. - tronco (m), tora (f), barquilha (f) (Náut.), diário (m) de bordo (Náut.) (Aer.), registro (m)
v. - registrar em diário de bordo
abbr. - logaritmo (m) (Mat.)

idioms:

• like a log    como uma pedra
• log book    diário (m) de bordo (Náut.) (Aer.)
• log in    registro de entrada (Comp.)
• log into    registrar-se (Comp.)
• log on/off    entrar/sair do sistema
• log out    registro de saída (Comp.)

Русский (Russian)
регистрировать, автоматически проверять входной пароль, работать на лесозаготовках, вносить в судовой журнал, проходить по лагу, бревно, лаг, буровой журнал

idioms:

• like a log    неподвижно, без сознания
• log book    вахтенный журнал, формуляр автомобиля или самолета
• log in/out    входить в систему/выходить из системы
• log into    регистрировать в журнале
• log on/off    входить в систему/выходить из системы

Español (Spanish)
1.
n. - cuaderno de bitácora, diario de a bordo, logaritmo
v. tr. - anotar en el cuaderno de bitácora, extraer madera de un bosque, cortar y transportar troncos
v. intr. - cortar y transportar troncos, extraer madera de un bosque

idioms:

• log book    cuaderno de bitácora, diario de a bordo, cuaderno de trabajo, diario de vuelo
• log in    entrar al sistema, iniciar una sesión
• log into    entrar al sistema
• log off    apagar el sistema
• log on    apagar el sistema
• log out    salir del sistema, clausurar una sesión

2.
n. - tronco, leño

Svenska (Swedish)
n. - (timmer)stock, (fälld) stam, vedträ, (trä)kubb, (sjö.) logg
v. - kapa (timmer i stockar), (isht. Am.) avverka, föra in i loggboken, tillryggalägga (göra) (en viss sträcka) enligt loggen (loggboken), logga, (sjö.) bötfälla
abbr. - logaritm

中文（简体）(Chinese (Simplified))
1. 圆木, 木料, 原木, 测程仪, 计程仪, 伐, 把锯成段木, 采伐的林木, 把...记入航海日志, 伐木

idioms:

• like a log    像木头一样不能动
• log book    日志, 行车日志
• log in    挂号, 进入系统, 注册
• log into    登录
• log off    销号, 退出系统, 注销
• log on    挂号, 注册, 登录
• log out    退出

2. 记录, 日志

中文（繁體）(Chinese (Traditional))
1.
n. - 記錄, 日誌

2.
n. - 圓木, 木料, 原木, 測程儀, 計程儀
v. tr. - 伐, 把鋸成段木, 採伐的林木, 把...記入航海日誌
v. intr. - 伐木

idioms:

• like a log    像木頭一樣不能動
• log book    日誌, 行車日誌
• log in    掛號, 進入系統, 註冊
• log into    登錄
• log off    銷號, 退出系統, 註銷
• log on    掛號, 註冊, 登錄
• log out    退出

한국어 (Korean)
1.
n. - 통나무 , 장작, 측정의, 항해일기, 운전기록
v. tr. - 통나무로 자르다, 속도를 내다, 항해하다
v. intr. - 벌목하다

idioms:

• like a log    세상 모르고
• log in    컴퓨터의 사용을 시작하다
• log into    컴퓨터 작업을 시작하다
• log off    입목을 벌채하다
• log on    컴퓨터의 사용을 시작하다
• log out    컴퓨터 작업을 끝마치다

2.
n. - 로그 , 대수

日本語 (Japanese)
n. - 丸太, 丸木, まき, 測程儀, 航海日誌, 自動車旅行日誌
v. - 丸太に切る, 伐採する, 航海日誌に記入する

idioms:

• like a log    じっと動かずに横たわる
• log book    飛行記録表
• log in/out    登録する
• log into    (電算)記録する
• log on/off    ログオン

العربيه (Arabic)
‏(الاسم) زند الخشب, اللوك جهاز لقياس, سرعه السفينه أو تقدمها اليومي, سجل الطائرة, سجل الأداء, اللوغارتم (فعل) يقطع الأشجار ليتخذ منها أخشابا, يدون تفاصيل الرحله في سجل الباخرة أو الطائرة, يجتاز مسافه معينه أو يبلغ سرعه معينه يسجلها اللوك (اختصار) مختصر : اللوغاريثمات (رياضيات logarithms )‏

עברית (Hebrew)
n. - ‮גזע כרות, בול-עץ, קורה, יומן, מנווט, מד מהירות אוניה, יומן הפלגה או טיסה, יומן הפעלת מכונה‬
v. tr. - ‮רשם ביומן-הנווט, חטב בולי-עץ‬
v. intr. - ‮חטב בולי-עץ‬
n. - ‮לוגריתם‬

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Log Splitter	Log Bookshelf
Log Furniture	Log Splitters