D defs.my
Entry 6 senses · 2 variants Webster, 1913

Multiply

/mŭlʹtĭ-plī/ · Mul·ti·ply · IPA /ˈmʌltɪplaɪ/
01 v. t. To increase in number; to make more numerous; to add quantity to.
imp. & p. p. Multiplied; p. pr. & vb. n. Multiplying
  1. 1.
    To increase in number; to make more numerous; to add quantity to.
    “Impunity will multiply motives to disobedience.” — Ames.
  2. 2.
    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.(Math.) See: Multiplication
  3. 3.
    To increase (the amount of gold or silver) by the arts of alchemy.[Obs.]
Phrases & compounds
Multiplying gear — gear for increasing speed.
Multiplying lens — See under Lens.
02 v. i. To become greater in number; to become numerous.
  1. 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. 2.
    To increase in extent and influence; to spread.
    “The word of God grew and multiplied.” — Acts xii. 24.
  3. 3.
    To increase amount of gold or silver by the arts of alchemy.[Obs.]