masthead vs mast

masthead and mast both are nouns.

Word	Noun	Adjective	Verb	Adverb
masthead	Yes	No	No	No
mast	Yes	No	No	No

masthead (noun)	mast (noun)
the head or top of a mast	a vertical spar for supporting sails
the title of a newspaper or magazine; usually printed on the front page and on the editorial page	any sturdy upright pole
a listing printed in all issues of a newspaper or magazine (usually on the editorial page) that gives the name of the publication and the names of the editorial staff, etc.	nuts of forest trees used as feed for swine
	nuts of forest trees (as beechnuts and acorns) accumulated on the ground