deck vs platform

deck and platform both are nouns.

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

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

deck (noun)	platform (noun)
any of various platforms built into a vessel	a raised horizontal surface
street name for a packet of illegal drugs	any military structure or vehicle bearing weapons
a porch that resembles the deck on a ship	a woman's shoe with a very high thick sole
a pack of 52 playing cards	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