capsizing vs shipwreck

capsizing and shipwreck both are nouns.

Word	Noun	Adjective	Verb	Adverb
capsizing	Yes	No	No	No
shipwreck	Yes	No	Yes	No

As nouns, shipwreck is a hypernym of capsizing; that is, shipwreck is a word with a broader meaning than capsizing:

capsizing: (nautical) the event of a boat accidentally turning over in the water
shipwreck: an accident that destroys a ship at sea

Other hypernyms of capsizing include wreck.

capsizing (noun)	shipwreck (noun)
(nautical) the event of a boat accidentally turning over in the water	a wrecked ship (or a part of one)
	an accident that destroys a ship at sea
	an irretrievable loss

capsizing (verb)	shipwreck (verb)
	destroy a ship
	cause to experience shipwreck
	ruin utterly
	suffer failure, as in some enterprise