splurge vs flash

splurge and flash both are nouns.

Word	Noun	Adjective	Verb	Adverb
splurge	Yes	No	Yes	No
flash	Yes	Yes	Yes	No

As nouns, flash is a hypernym of splurge; that is, flash is a word with a broader meaning than splurge:

Other hypernyms of splurge include fanfare, ostentation.

As verbs, flash is a hypernym of splurge; that is, flash is a word with a broader meaning than splurge:

Other hypernyms of splurge include flaunt, ostentate, show off, swank.

splurge (noun)	flash (noun)
any act of immoderate indulgence	a lamp for providing momentary light to take a photograph
an ostentatious display (of effort or extravagance etc.)	a bright patch of color used for decoration or identification
	a momentary brightness
	a sudden brilliant understanding
	a short news announcement concerning some on-going news story
	a burst of light used to communicate or illuminate
	a gaudy outward display
	a sudden intense burst of radiant energy
	a short vivid experience
	a very short time (as the time it takes the eye to blink or the heart to beat)

splurge (adjective)	flash (adjective)
	tastelessly showy

splurge (verb)	flash (verb)
be showy or ostentatious	appear briefly
indulge oneself	emit a brief burst of light
	make known or cause to appear with great speed
	protect by covering with a thin sheet of metal
	run or move very quickly or hastily
	gleam or glow intermittently
	display proudly; act ostentatiously or pretentiously
	expose or show briefly