live vs board

live is not a noun while board is a noun.

Word	Noun	Adjective	Verb	Adverb
live	No	Yes	Yes	Yes
board	Yes	No	Yes	No

As verbs, board is a hyponym of live; that is, board is a word with a more specific, narrower meaning than live:

As verbs, board is a hyponym of live; that is, board is a word with a more specific, narrower meaning than live:

live (noun)	board (noun)
	a flat piece of material designed for a special purpose
	a table at which meals are served
	electrical device consisting of a flat insulated surface that contains switches and dials and meters for controlling other electrical devices
	a vertical surface on which information can be displayed to public view
	a printed circuit that can be inserted into expansion slots in a computer to increase the computer's capabilities
	a flat portable surface (usually rectangular) designed for board games
	food or meals in general
	a committee having supervisory powers
	a stout length of sawn timber; made in a wide variety of sizes and used for many purposes

live (adjective)	board (adjective)
possessing life
exerting force or containing energy
actually being performed at the time of hearing or viewing
charged or energized with electricity
of current relevance
elastic; rebounds readily
abounding with life and energy
charged with an explosive
highly reverberant
in current use or ready for use
capable of erupting

live (verb)	board (verb)
have firsthand knowledge of states, situations, emotions, or sensations	provide food and lodging (for)
have life, be alive	lodge and take meals (at)
support oneself	get on board of (trains, buses, ships, aircraft, etc.)
continue to live and avoid dying	live and take one's meals at or in
lead a certain kind of life; live in a certain style
pursue a positive and satisfying existence
be an inhabitant of or reside in

live (adverb)	board (adverb)
not recorded