- A burnt sacrifice; an offering, the whole of which was
consumed by fire, among the Jews and some pagan nations. - Sacrifice or loss of many lives, as by the burning of a
theater or a ship. [An extended use not authorized by careful writers.]
Meaning of 'holocaust' (Princeton's WordNet)
1 . holocaust
[ n]
Meaning (1): - an act of mass destruction and loss of life (especially in war or by fire)