Definitions
1.verbTo increase the amount, degree or number of (something).
2.verb(with by) To perform multiplication on (a number)."when you multiply 3 by 7, you get 21; he multiplied several numbers"
3.verbTo grow in number.
4.verbTo breed or propagate.
5.verbTo perform multiplication."He had been multiplying, but it occurred to him he needed to resolve the exponents, first."
6.verbTo be a factor in a multiplication with (another factor).
7.nounAn act of multiplication.