manna from heaven vs bonanza

manna from heaven and bonanza both are nouns.

Word	Noun	Adjective	Verb	Adverb
manna from heaven	Yes	No	No	No
bonanza	Yes	No	No	No

As nouns, manna from heaven and bonanza are synonyms defined as:

manna from heaven and bonanza: a sudden happening that brings good fortune (as a sudden opportunity to make money)

Other synonyms of manna from heaven include boom, bunce, godsend, gold rush, gravy, windfall.

manna from heaven (noun)	bonanza (noun)
a sudden happening that brings good fortune (as a sudden opportunity to make money)	a sudden happening that brings good fortune (as a sudden opportunity to make money)
(Old Testament) food that God gave the Israelites during the Exodus	an especially rich vein of precious ore