decease (generic term)
perish (generic term)
go (generic term)
exit (generic term)
pass away (generic term)
expire (generic term)
pass (generic term)
kick the bucket (generic term)
cash in one's chips (generic term)
buy the farm (generic term)
conk (generic term)
give-up the ghost (generic term)
drop dead (generic term)
pop off (generic term)
choke (generic term)
croak (generic term)
snuff it (generic term)