vomit
vomit up
purge
cast
sick
cat
be sick
disgorge
regorge
retch
puke
barf
spew
spue
chuck
upchuck
honk
regurgitate
throw up
eject the contents of the stomach through the mouth
After drinking too much, the students vomited
He purged continuously
The patient regurgitated the food we gave him last night