Difference between Enclosed and Enveloped

ENCLOSED vs ENVELOPED: ADJECTIVE

(of a division within a pipe organ surrounded by a wooden box, one or more sides of which contain slats that can be opened or closed in order to increase or decrease volume) having closed slats
Fenced in or surrounded
Contained within a three dimensional container
Surrounded or closed in, usually on all sides. Opposite of unenclosed.
Closed in or surrounded or included within

In heraldry, entwined: applied to charges around which serpents, or laurels or other plants, are loosely wound. Also inwrapped.

Fogbound, Besieged, Penned, Swallowed, Included, Capsulated, Embedded, Closed, Engulfed, Boxed, Enwrapped, Enveloped, Surrounded, Encircled, Confined

Permeated, Pervaded, Bagged, Virion, Packaged, Sieged, Cordoned, Encased, Wrapped, Swaddled, Surrounded, Shrouded, Enclosed, Swallowed, Engulfed

Fogbound, Besieged, Penned, Swallowed, Included, Capsulated, Embedded, Closed, Engulfed, Boxed, Enwrapped, Enveloped, Surrounded, Encircled, Confined

Blanketed, Permeated, Pervaded, Bagged, Virion, Packaged, Cordoned, Encased, Wrapped, Swaddled, Surrounded, Shrouded, Enclosed, Swallowed, Engulfed

Enclosed please find a copy of our brochure.
Enclosed are my resume and a cover letter.
The value list must be enclosed in parentheses.
The ground enclosed for a contest or combat.
Implementation Fee must be enclosed with this Application.
Please read the enclosed brochures for more information.
The same set of test conditions enclosed within est conditions enclosed within can be used for the test command.
Fire pump rooms not directly accessible from the outside shall be accessible through an enclosed passageway from an enclosed stairway or exterior exit.
When spraying adjacent to enclosed coating and dipping operations, where the operation is enclosed, the location is nonhazardous.
Enclosed structures, including enclosed tents, would limit air circulation and undo the benefits of being outdoor.