Meaning of MULTIPLY in English

mul ‧ ti ‧ ply /ˈmʌltəplaɪ, ˈmʌltɪplaɪ/ BrE AmE verb ( past tense and past participle multiplied , present participle multiplying , third person singular multiplies )

[ Date: 1100-1200 ; Language: Old French ; Origin: multiplier , from Latin multiplicare , from multiplex ; ⇨ ↑ multiplex ]

1 . [intransitive and transitive] to do a calculation in which you add a number to itself a particular number of times ⇨ divide :

Children will learn to multiply in the second grade.

multiply something by something

Multiply the total by 12.

2 . [intransitive and transitive] to increase by a large amount or number, or to make something do this:

The amount of information available has multiplied.

Smoking multiplies the risk of heart attacks and other health problems.

3 . [intransitive] to breed:

Bacteria multiply quickly in warm food.

• • •


■ different ways of calculating

▪ add to put two or more numbers together to find the total:

If you add 7 and 5, you get 12.

▪ subtract/take away to reduce one number by another number. take something away sounds more informal than subtract :

If you subtract 12 from 15, you get 3.

▪ multiply to add a number to itself a particular number of times:

4 multiplied by 10 is 40.

▪ divide to calculate how many times one number contains another number:

10 divided by 2 equals 5.

Longman Dictionary of Contemporary English.      Longman - Словарь современного английского языка.