centrefold vs spreadhead

centrefold and spreadhead both are nouns.

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

As nouns, spreadhead is a hypernym of centrefold; that is, spreadhead is a word with a broader meaning than centrefold:

centrefold: a magazine center spread; especially a foldout of a large photograph or map or other feature
spreadhead: two facing pages of a book or other publication

Other hypernyms of centrefold include facing pages, spread, spread head, foldout, gatefold.

centrefold (noun)	spreadhead (noun)
a magazine center spread; especially a foldout of a large photograph or map or other feature	two facing pages of a book or other publication