godsend vs gold rush

godsend and gold rush both are nouns.

Word	Noun	Adjective	Verb	Adverb
godsend	Yes	No	No	No
gold rush	Yes	No	No	No

As nouns, godsend and gold rush are synonyms defined as:

godsend and gold rush: a sudden happening that brings good fortune (as a sudden opportunity to make money)

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

godsend (noun)	gold rush (noun)
a sudden happening that brings good fortune (as a sudden opportunity to make money)	a large migration of people to a newly discovered gold field
	a sudden happening that brings good fortune (as a sudden opportunity to make money)