|Origin:||multiplier, from Latin multiplicare, from multiplex; MULTIPLEX|
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.
Bacteria multiply quickly in warm food.