multiplies; multiplied; multiplying
1 a [no object] : to increase greatly in number or amount : to become much more numerous
Complaints about the new procedure soon multiplied.
Her responsibilities multiplied when she was promoted.
b [+ object] : to cause (something) to increase greatly in number or amount
Her responsibilities were multiplied by the promotion.
2 [no object] : to increase in number by reproducing
The bacteria multiply rapidly in warm, moist conditions.
3 mathematics : to add a number to itself a certain number of times
If you multiply 5 by 2 you get 10. = If you multiply 5 and 2 (together) you get 10. = 5 multiplied by 2 equals 10.
The teacher taught the children how to add, subtract, multiply, and divide.
— compare divide