sunburst vs brooch

sunburst and brooch both are nouns.

Word	Noun	Adjective	Verb	Adverb
sunburst	Yes	No	No	No
brooch	Yes	No	Yes	No

As nouns, brooch is a hypernym of sunburst; that is, brooch is a word with a broader meaning than sunburst:

Other hypernyms of sunburst include breastpin, broach.

sunburst (noun)	brooch (noun)
a jeweled brooch with a pattern resembling the sun	a decorative pin worn by women
a design consisting of a central disk resembling the sun and rays emanating from it
a sudden emergence of the sun from behind clouds

sunburst (verb)	brooch (verb)
	fasten with or as if with a brooch