Word Pronunications

Here are some great English words that I'll bet a lot of people recognize but might not pronounce right:

bivouac
mischievous
assuage
exiguity
plethora
coitus
lissom
scion
verdant
avarice
raucous
insouciant
puerile
winsome
polyglot
umbrage
facile
intransigent
paucity
fatuous
inchoate
chimera