to well (up); to gush out (of water); to spring out; to surge

to appear (esp. suddenly) (sweat, tears, etc.); to sweat; to cry

to feel emotions (e.g. joy, bravery, etc.); to spring up (e.g. an idea, emotions, clouds); to well up; to arise

to hatch; to breed; to propagate; to be infested (esp. of parasitic insects, etc.)

Esp. 沸き上がる

to boil up; to come to the boil; to seethe

to arise; to break out

to get excited; to be in uproar

welling (up); gushing forth (of water); springing out; surging

appearing (esp. suddenly)

frothing of water (due to an advancing school of fish)

to gush forth (e.g. water from a spring); to flow (out); to stream (out); to bubble up

to well up (of tears, emotions, etc.); to flow out (of tears)

to emerge; to suddenly appear; to come forth

to gush out

to feel that something is true or actually happening; to hit one (realization, thought); to sink in

to well up; to burst; to arise

to happen suddenly; to occur unexpectedly; to appear out of the blue

spring water

to appear suddenly