packing vs enclosure

packing and enclosure both are nouns.

Word	Noun	Adjective	Verb	Adverb
packing	Yes	No	No	No
enclosure	Yes	No	No	No

As nouns, enclosure is a hypernym of packing; that is, enclosure is a word with a broader meaning than packing:

Other hypernyms of packing include enclosing, envelopment, inclosure.

packing (noun)	enclosure (noun)
the enclosure of something in a package or box	the act of enclosing something inside something else
carrying something in a pack on the back	a structure consisting of an area that has been enclosed for some purpose
any material used especially to protect something	something (usually a supporting document) that is enclosed in an envelope with a covering letter
	a naturally enclosed space