inclosure vs envelopment

inclosure and envelopment both are nouns.

Word	Noun	Adjective	Verb	Adverb
inclosure	Yes	No	No	No
envelopment	Yes	No	No	No

As nouns, inclosure and envelopment are synonyms defined as:

inclosure and envelopment: the act of enclosing something inside something else

Other synonyms of inclosure include enclosing, enclosure.

inclosure (noun)	envelopment (noun)
the act of enclosing something inside something else	the act of enclosing something inside something else
something (usually a supporting document) that is enclosed in an envelope with a covering letter