multiplymul·ti·ply /ˈmʌltəplaɪ/ verb (past tensepst and past participlepp multiplied) [intransitiveI, transitiveT] 1to increase greatly or to make something increase greatly
Program-length commercials are multiplying nationwide.
This year we hope to multiply exports to about $1.7 million.
2to add a number to itself a particular number of times multiply something by something
Multiply your salary by three to get your maximum loan.