Combine by multiplication.

Dutch: multipliceren, verheffen, vermenigvuldigen

Combine or increase by multiplication:
— He managed to multiply his profits.

synonym: manifold.

Dutch: vermenigvuldigen, verveelvoudigen

Have young (animals) or reproduce (organisms).

synonym: breed.

Roget 85: number, count, tally, tell; call over, run over; take an account of, enumerate, muster, poll, recite, recapitulate; sum; sum up, cast up; tell off, score, cipher, compute, calculate, suppute^†, add, subtract, multiply, divide, extract roots.    algebraize^†.    check, prove, demonstrate, balance, audit, overhaul, take stock; affix numbers to, page.    amount to, add up to, come to.    ... show more

Roget 102: be numerous etc. adj.; swarm with, teem with, creep with; crowd, swarm, come thick upon; outnumber, multiply; people; swarm like locusts, swarm like bees.    ... show more

Dutch: fokken, broeden

Have offspring or produce more individuals of a given animal or plant.

synonyms: procreate, reproduce.

Roget 163: reproduce; restore etc. 660; revive, renovate, renew, regenerate, revivify, resuscitate, reanimate; remake, refashion, stir the embers, put into the crucible; multiply, repeat; resurge^†.    crop up, spring up like mushrooms.    ... show more

Roget 168: make productive etc. adj.; fructify; procreate, generate, fertilize, spermative^†, impregnate; fecundate, fecundify^†; teem, multiply; produce etc. 161; conceive.    ... show more

Dutch: voortpanten, reproduceren, vermenigvuldigen, voortplanten

In several ways; in a multiple manner.