pack vs unpack

pack is a noun but unpack is not a noun.

Word	Noun	Adjective	Verb	Adverb
pack	Yes	No	Yes	No
unpack	No	No	Yes	No

pack (noun)	unpack (noun)
a convenient package or parcel (as of cigarettes or film)
a bundle (especially one carried on the back)
a sheet or blanket (either dry or wet) to wrap around the body for its therapeutic effect
a cream that cleanses and tones the skin
a group of hunting animals
an exclusive circle of people with a common purpose
an association of criminals
a complete collection of similar things
a large indefinite quantity

pack (verb)	unpack (verb)
treat the body or any part of it by wrapping it, as with blankets or sheets, and applying compresses to it, or stuffing it to provide cover, containment, or therapy, or to absorb blood	remove from its packing
arrange in a container
load with a pack
compress into a wad
seal with packing
press down tightly
carry, as on one's back
have the property of being packable or of compacting easily
press tightly together or cram
hike with a backpack
fill to capacity
set up a committee or legislative body with one's own supporters so as to influence the outcome
have with oneself; have on one's person