The Collaborative International Dictionary of English v.0.48:
Multiply \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
Impunity will multiply motives to disobedience.
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
3. To increase (the amount of gold or silver) by the arts of
Multiplying gear (Mach.), gear for increasing speed.
Multiplying lens. (Opt.) See under Lens.
Moby Thesaurus II by Grady Ward, 1.0:
22 Moby Thesaurus words for "multiplying":
crescendoing, crescent, expanding, growing, increase, increasing,
incremental, intensifying, lengthening, multiple, multiplication,
multiplication table, multiplier, on the increase, proliferating,
proliferation, snowballing, spreading, swelling, tables,