encase vs package

encase is not a noun while package is a noun.

Word	Noun	Adjective	Verb	Adverb
encase	No	No	Yes	No
package	Yes	No	Yes	No

As verbs, package is a hyponym of encase; that is, package is a word with a more specific, narrower meaning than encase:

Other hyponyms of encase include pack, box, sack, crate.

encase (noun)	package (noun)
	a wrapped container
	(computer science) written programs or procedures or rules and associated documentation pertaining to the operation of a computer system and that are stored in read/write memory
	a collection of things wrapped or boxed together

encase (verb)	package (verb)
enclose in, or as if in, a case	put into a box