footboard vs platform

footboard and platform both are nouns.

Word	Noun	Adjective	Verb	Adverb
footboard	Yes	No	No	No
platform	Yes	No	No	No

As nouns, platform is a hypernym of footboard; that is, platform is a word with a broader meaning than footboard:

footboard (noun)	platform (noun)
a vertical board or panel forming the foot of a bedstead	a raised horizontal surface
a narrow platform on which to stand or brace the feet	any military structure or vehicle bearing weapons
	a woman's shoe with a very high thick sole
	the combination of a particular computer and a particular operating system
	a long, flat raised structure of a railway station, where people get on and off of trains
	a document stating the aims and principles of a political party