Be teeming, be abuzz:
— Her mind pullulated with worries.

synonyms: swarm, teem.

Roget 161: produce, perform, operate, do, make, gar, form, construct, fabricate, frame, contrive, manufacture; weave, forge, coin, carve, chisel; build, raise, edify, rear, erect, put together, set up, run up; establish, constitute, compose, organize, institute; achieve, accomplish etc. (complete) 729.    flower, bear fruit, fructify, teem, ean^†, yean^†, farrow, drop, pup, kitten, kindle; bear, lay, whelp, bring forth, give birth to, lie in, be brought to bed of, evolve, pullulate, usher into the world.    make productive etc. 168; create; beget, get, generate, fecundate, impregnate; procreate, progenerate^†, propagate; engender; bring into being, call into being, bring into existence; breed, hatch, develop, bring up.    induce, superinduce; suscitate^†; cause etc. 153; acquire etc. 775.    ... show more

Dutch: kiemen, krioelen, sterven, stikken, wemelen

Move in large numbers:
— Beggars pullulated in the plaza.

synonyms: pour, stream, swarm, teem.

Produce buds, branches, or germinate.

synonyms: bourgeon, burgeon forth, germinate, shoot, sprout, spud.

Roget 194: become larger etc. (large) etc. 192; expand, widen, enlarge, extend, grow, increase, incrassate^†, swell, gather; fill out; deploy, take open order, dilate, stretch, distend, spread; mantle, wax; grow up, spring up; bud, bourgeon [Fr.], shoot, sprout, germinate, put forth, vegetate, pullulate, open, burst forth; gain flesh, gather flesh; outgrow; spread like wildfire, overrun.    be larger than; surpass etc. (be superior) 33.    render larger etc. (large) etc. 192; expand, spread, extend, aggrandize, distend, develop, amplify, spread out, widen, magnify, rarefy, inflate, puff, blow up, stuff, pad, cram; exaggerate; fatten.    ... show more

Dutch: botten, kiemen, ontkiemen, punten, schieten, uitbotten, uitlopen, uitschieten

Become abundant; increase rapidly.

Dutch: krioelen

Breed freely and abundantly.