surge vs spate

surge and spate both are nouns.

Word	Noun	Adjective	Verb	Adverb
surge	Yes	No	Yes	No
spate	Yes	No	No	No

As nouns, surge and spate are synonyms defined as:

Other synonyms of surge include rush, upsurge.

surge (noun)	spate (noun)
a sudden or abrupt strong increase	the occurrence of a water flow resulting from sudden rain or melting snow
a sudden forceful flow	a sudden forceful flow
a large sea wave	(often followed by `of') a large number or amount or extent

surge (verb)	spate (verb)
see one's performance improve
rise rapidly
rise and move, as in waves or billows
rise or move forward
rise or heave upward under the influence of a natural force such as a wave