row vs bust-up

row and bust-up both are nouns.

Word	Noun	Adjective	Verb	Adverb
row	Yes	No	Yes	No
bust-up	Yes	No	No	No

As nouns, bust-up is a hyponym of row; that is, bust-up is a word with a more specific, narrower meaning than row:

Other hyponyms of row include affray, altercation, fracas, bicker, bickering, fuss, pettifoggery, spat, squabble, tiff.

row (noun)	bust-up (noun)
the act of rowing as a sport	a serious quarrel (especially one that ends a friendship)
(construction) a layer of masonry
a continuous chronological succession without an interruption
an arrangement of objects or people side by side in a line
a linear array of numbers, letters, or symbols side by side
a long continuous strip (usually running horizontally)
an angry dispute

row (verb)	bust-up (verb)
propel with oars