I. log 1 S3 /lɒɡ $ lɒːɡ, lɑːɡ/ BrE AmE noun [countable]
[ Date: 1300-1400 ; Origin: Probably from a Scandinavian language ]
1 . a thick piece of wood from a tree:
a roaring log fire
2 . an official record of events, especially on a journey in a ship or plane:
The captain always keeps a log.
3 . a ↑ logarithm
⇨ it’s as easy as falling off a log at ↑ fall 1 (30), ⇨ sleep like a log/top at ↑ sleep 1 (1)
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THESAURUS
▪ record information about something that is written down:
your medical records
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the public records office
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I have to keep a record of all my spending when I’m travelling on business.
▪ file a set of written records, or information stored on a computer under a particular name:
He began reading the file on the case.
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I think I may have accidentally deleted the file.
▪ accounts ( also books informal ) an exact record of the money that a company has received and spent:
Companies are required by law to publish their annual accounts.
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Someone had been falsifying the accounts.
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The company’s books all seemed to be in order.
▪ ledger one of the official books in which a company’s financial records are kept, which show how much it has received and spent:
The costs have been moved from one column of the ledger to another.
▪ minutes an official written record of what is said and decided at a meeting:
Both points are mentioned in the minutes of the last meeting on August 3rd.
▪ diary a book in which you regularly write down the things that have happened to you:
In his diary he wrote, ‘It s lovely having him here, we’ve had so many cosy talks.’
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I’ll just check in my diary to see if I’m free.
▪ blog a web page on the Internet on which someone regularly writes about their life, opinions, or a particular subject:
I may not always agree with David, but I always read his blog.
▪ register an official list of names of people, organizations etc:
Guests must sign the hotel register.
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the national register of births, deaths, and marriages
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Lloyds Register of Shipping
▪ roll an official list of names, especially of people who are allowed to do something such as vote or be in a class at school:
the electoral roll (=list of people who can vote in an area)
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The teacher called the roll (=read out the list of the names of the students, who then have to say if they are present) .
▪ log an official record that is kept on a ship or plane:
Mr Appleby said he complained to a senior officer, who made a note in the ship’s log.
II. log 2 BrE AmE verb ( past tense and past participle logged , present participle logging )
1 . [transitive] to make an official record of events, facts etc:
All phone calls are logged.
2 . [transitive] to travel a particular distance or for a particular length of time, especially in a plane or ship:
The pilot has logged 1200 flying hours.
3 . [intransitive and transitive] to cut down trees
log in/on phrasal verb
to do the necessary actions on a computer system that will allow you to begin using it
log in/on to
You need to log on to your home page.
log off/out phrasal verb
to stop using a computer system by giving it particular instructions