Multiply is a verb with multiple meanings:
1. In mathematics: to perform the operation of multiplication (e.g. 3 multiplied by 4 equals 12)
2. To increase in number (e.g. Rabbits multiply rapidly)
3. To breed or propagate (e.g. Bacteria multiply in warm conditions)
4. To increase in amount or degree (e.g. Problems multiplied after the decision)
5. In computing: a basic arithmetic operation