foldout vs centrefold

foldout and centrefold both are nouns.

Word	Noun	Adjective	Verb	Adverb
foldout	Yes	No	No	No
centrefold	Yes	No	No	No

As nouns, centrefold is a hyponym of foldout; that is, centrefold is a word with a more specific, narrower meaning than foldout:

foldout: an oversize page that is folded in to a book or magazine
centrefold: a magazine center spread; especially a foldout of a large photograph or map or other feature

Other hyponyms of foldout include centerfold.

foldout (noun)	centrefold (noun)
an oversize page that is folded in to a book or magazine	a magazine center spread; especially a foldout of a large photograph or map or other feature