box vs unbox

box is a noun but unbox is not a noun.

Word	Noun	Adjective	Verb	Adverb
box	Yes	No	Yes	No
unbox	No	No	Yes	No

box (noun)	unbox (noun)
a blow with the hand (usually on the ear)
a (usually rectangular) container; may have a lid
separate partitioned area in a public place for a few people
private area in a theater or grandstand where a small group can watch the performance
the driver's seat on a coach
any one of several designated areas on a ball field where the batter or catcher or coaches are positioned
evergreen shrubs or small trees
the quantity contained in a box
a rectangular drawing
a predicament from which a skillful or graceful escape is impossible

box (verb)	unbox (verb)
hit with the fist	remove from a box
engage in a boxing match	to open a new product on a video stream
put into a box