board vs knot

board and knot both are nouns.

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

board (noun)	knot (noun)
a flat piece of material designed for a special purpose	a sandpiper that breeds in the Arctic and winters in the Southern Hemisphere
a table at which meals are served	any of various fastenings formed by looping and tying a rope (or cord) upon itself or to another rope or to another object
electrical device consisting of a flat insulated surface that contains switches and dials and meters for controlling other electrical devices	soft lump or unevenness in a yarn; either an imperfection or created by design
a vertical surface on which information can be displayed to public view	a tight cluster of people or things
a printed circuit that can be inserted into expansion slots in a computer to increase the computer's capabilities	something twisted and tight and swollen
a flat portable surface (usually rectangular) designed for board games	a hard cross-grained round piece of wood in a board where a branch emerged
food or meals in general	(of ships and wind) a unit of speed equal to one nautical mile per hour or about 1.15 statute miles per hour
a committee having supervisory powers
a stout length of sawn timber; made in a wide variety of sizes and used for many purposes

board (verb)	knot (verb)
provide food and lodging (for)	tie or fasten into a knot
lodge and take meals (at)	tangle or complicate
get on board of (trains, buses, ships, aircraft, etc.)	make into knots; make knots out of
live and take one's meals at or in