hatch vs car door

hatch and car door both are nouns.

Word	Noun	Adjective	Verb	Adverb
hatch	Yes	No	Yes	No
car door	Yes	No	No	No

As nouns, car door is a hypernym of hatch; that is, car door is a word with a broader meaning than hatch:

hatch (noun)	car door (noun)
a movable barrier covering a hatchway	the door of a car
a sloping rear car door that is lifted to open
shading consisting of multiple crossing lines
the production of young from an egg

hatch (verb)	car door (verb)
sit on (eggs)
emerge from the eggs
draw, cut, or engrave lines, usually parallel, on metal, wood, or paper
devise or invent
inlay with narrow strips or lines of a different substance such as gold or silver, for the purpose of decorating