tiff vs spat

tiff and spat both are nouns.

Word	Noun	Adjective	Verb	Adverb
tiff	Yes	No	No	No
spat	Yes	No	Yes	No

As nouns, tiff and spat are synonyms defined as:

Other synonyms of tiff include bicker, bickering, fuss, pettifoggery, squabble.

tiff (noun)	spat (noun)
a quarrel about petty points	a young oyster or other bivalve
	a cloth covering (a legging) that covers the instep and ankles
	a quarrel about petty points

tiff (verb)	spat (verb)
	clap one's hands together
	spawn
	engage in a brief and petty quarrel
	clap one's hands or shout after performances to indicate approval
	strike with a sound like that of falling rain
	become permanently attached
	come down like raindrops