• #10, e.g.: Abbr.
• Bill holder: Abbr.
• Card holder: Abbr.
• Check holder: Abbr.
• Diplomat: Abbr.
• Encl. with a submission
• Invoice encl.
• It encloses a ltr.
• It gets stuffed and stamped: Abbr.
• It may be cancelled by the PO
• It may be self-addressed (Abbr.)
• It may be self-sealing: Abbr.
• It may get licked: Abbr.
• It may get stuffed: Abbr.
• It may have a small window: Abbr.
• It may have a window (abbr.)
• It may say ME or HI
• It might be SWAK
• It needs to be addressed: Abbr.
• Last pt. of SASE
• Letter carrier: abbr.
• Letter container: Abbr.
• Letter holder (abbr.)
• Letter's home: abbr.
• Ltr. carrier
• Ltr. container
• Ltr. enclosure
• Ltr. holder
• Ltr. wrapper
• Mailer, briefly
• No. 10, for one
• Oscar opening: Abbr.
• Oscars prop: Abbr.
• P.O. box item
• P.O. delivery
• P.O. item
• P.O. purchase
• Part of S.A.S.E.
• Part of S.A.S.E.: Abbr.
• Pay holder: Abbr.
• Place for stps.
• Place to write S.W.A.K.
• Post delivery: Abbr.
• Posted item: Abbr.
• Posting need: Abbr.
• Prop for the Acad. Awards
• SASE component
• SASE part
• SASE word
• SASE, e.g.
• Stamp's place: Abbr.
• Stationer's item: Abbr.
• Stationer's piece: abbr.
• Stationery item, briefly
• The E in SASE
• USPS carrier
• Where to swee SWAK