envelope Synonyms

wrapper gasbag sleeve covering cover mailer casing packet sheath wrapping whereon vesicle theca workbag receptacle testaceology tegument sac sachet sheathing shell shroud skin inwrap spooling tarpaulin workbasket wrap self-addressed wrappers outer covering mailing envelope letter envelope outer wrap outer wrapper correspondence envelope pie crust winding-sheet bear hug packaging adventitial protective cover fig leaf post card dust jacket liposome document envelope aril coat coating