Meaning of MULTIPLY in English

MULTIPLY

/ ˈmʌltɪplaɪ; NAmE / verb ( multi·plies , multi·ply·ing , multi·plied , multi·plied )

1.

multiply (A by B) | multiply A and B (together) to add a number to itself a particular number of times :

[ v ]

The children are already learning to multiply and divide.

[ vn ]

2 multiplied by 4 is / equals / makes 8 (2×4 = 8)

Multiply 2 and 6 together and you get 12.

2.

to increase or make sth increase very much in number or amount :

[ v ]

Our problems have multiplied since last year.

[ vn ]

Cigarette smoking multiplies the risk of cancer.

3.

( biology ) to reproduce in large numbers; to make sth do this :

[ v ]

Rabbits multiply rapidly.

[ vn ]

It is possible to multiply these bacteria in the laboratory.

••

WORD ORIGIN

Middle English : from Old French multiplier , from Latin multiplicare .

Oxford Advanced Learner's English Dictionary.      Оксфордский английский словарь для изучающик язык на продвинутом уровне.