header vs wall

header and wall both are nouns.

Word	Noun	Adjective	Verb	Adverb
header	Yes	No	No	No
wall	Yes	No	Yes	No

header (noun)	wall (noun)
(soccer) the act of hitting the ball with your head	an architectural partition with a height and length greater than its thickness; used to divide or enclose an area or to support another structure
a headlong jump (or fall)	an embankment built around a space for defensive purposes
a machine that cuts the heads off grain and moves them into a wagon	a masonry fence (as around an estate or garden)
a framing member crossing and supporting the ends of joists, studs, or rafters so as to transfer their weight to parallel joists, studs, or rafters	a layer of material that encloses space
brick that is laid sideways at the top of a wall	(anatomy) a layer (a lining or membrane) that encloses a structure
horizontal beam used as a finishing piece over a door or window	anything that suggests a wall in structure or function or effect
a line of text serving to indicate what the passage below it is about	a vertical (or almost vertical) smooth rock face (as of a cave or mountain)
	a difficult or awkward situation

header (verb)	wall (verb)
	surround with a wall in order to fortify