**Mul"ti*ply** (?), v. t. [imp. & p. p. Multiplied (?); p. pr. & vb. n. Multiplying (?).] [F. *multiplier*, L. *multiplicare*, fr. *multiplex* manifold. See Multitude, Complex.]

**1.**

To increase in number; to make more numerous; to add quantity to.

Impunity will **multiply** motives to disobedience.
*Ames.*

**2.** Math.

To add (any given number or quantity) to itself a certain number of times; to find the product of by multiplication; thus 7 **multiplied** by 8 produces the number 56; to **multiply** two numbers. See the Note under Multiplication.

**3.**

To increase (the amount of gold or silver) by the arts of alchemy.

[Obs.]

Multiplying gear Mach., gear for increasing speed. -- Multiplying lens. Opt. See under Lens.

© Webster 1913.

**Mul"ti*ply**, v. i.

**1.**

To become greater in number; to become numerous.

When men began to **multiply** on the face of the earth, and daughters were born unto them.
*Gen. vi. 1.*

**2.**

To increase in extent and influence; to spread.

The word of God grew and **multiplied**.
*Acts xii. 24.*

**3.**

To increase amount of gold or silver by the arts of alchemy.

[Obs.]

*Chaucer.*

© Webster 1913.