Longman Dictionary of Contemporary English homepage

Date: 1100-1200
Language: Old French
Origin: multiplier, from Latin multiplicare, from multiplex; MULTIPLEX

multiply

verb
     
Related topics: Maths
mul‧ti‧ply past tense and past participle multiplied, present participle multiplying, third person singular multiplies
1 [intransitive and transitive]HM 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.

Dictionary pictures of the day
Do you know what each of these is called?
What is the word for picture 1? What is the word for picture 2? What is the word for picture 3? What is the word for picture 4?
Click on any of the pictures above to find out what it is called.

Explore our topic dictionary