to boo
abuchear
to howl (coyotes, wolves)/howl (sustantivo)
aullar/el aullido
to gurgle
borbotear
to screech
chillar
to creak (door)/creak of the door
chirriar/el chirrido
to sizzle (oil in a frying pan)/sizzle
chisporrotear/el chisporroteo
to crackle (fire)/crackling
crepitar/la crepitación
to crunch (leaves, twigs)/crunch (of leaves)
crujir/el crujido
to thud
dar un batacazo
to whimper
gimotear
to drip (faucet)/drip (of a faucet)
gotear/el gotea
to roar (stadium crowd)/roar of a crowd
gritar/el griterío
to puff
jadear
to moo (cow)
mugir
to whoosh
pasar zumbando
to tweet (bird call)/tweet of the birds
piar/el piar
to beep (microwave timer)/the beep
pitar/el pitar
beep,honk (car horn)
el pitidos
to grind
rechinar
to neigh, bray
relinchar
to pitter-pat (cat around a room)/the pitter-pat
ronronear/el ronronea
to splash
salpicar
to whistle (wind)/whistle (of the wind)
silbar/el silbido
clang (metallic)
sonido metálico