box seat vs coach

box seat and coach both are nouns.

Word	Noun	Adjective	Verb	Adverb
box seat	Yes	No	No	No
coach	Yes	No	Yes	No

box seat (noun)	coach (noun)
a special seat in a theater or grandstand box	a carriage pulled by four horses with one driver
the driver's seat on a coach	a railcar where passengers ride
	a vehicle carrying many passengers; used for public transport
	a person who gives private instruction (as in singing, acting, etc.)
	(sports) someone in charge of training an athlete or a team

box seat (verb)	coach (verb)
	teach and supervise (someone); act as a trainer or coach (to), as in sports
	drive or operate a coach or carriage