scuttle vs escape hatch

scuttle and escape hatch both are nouns.

Word	Noun	Adjective	Verb	Adverb
scuttle	Yes	No	Yes	No
escape hatch	Yes	No	No	No

As nouns, escape hatch is a hyponym of scuttle; that is, escape hatch is a word with a more specific, narrower meaning than scuttle:

scuttle: an entrance equipped with a hatch; especially a passageway between decks of a ship
escape hatch: hatchway that provides a means of escape in an emergency

scuttle (noun)	escape hatch (noun)
container for coal; shaped to permit pouring the coal onto the fire	hatchway that provides a means of escape in an emergency
an entrance equipped with a hatch; especially a passageway between decks of a ship

scuttle (verb)	escape hatch (verb)
to move about or proceed hurriedly