perish
verb(per-ish)
pass from physical life and lose all bodily attributes and functions necessary to sustain life
Synonyms: buy the farm, cash in one's chips, 
choke, 
conk, 
croak, 
decease, 
die, drop dead, 
exit, 
expire, give-up the ghost, 
go, kick the bucket, 
pass, pass away, pop off, snuff it, 
 Examples:
The children perished in the fire.