- SAE
- Oil-can letters
- Antiquated ed.'s request
- Bill enc.
- Ed.'s request
- Encl. for somebody who wants a reply
- Magazine renewal request encl.
- Manuscript encl.
- Snail mail application convenience: Abbr.
- Courtesy from a collection agcy.
- Credit card application encl.
- So, in Scotland
- Bill encl.
- RSVP facilitator: Abbr.
- It may be stamped: Abbr.
- Abbr. before "10W30" on a bottle of oil
- Letters before "10W-30" on a bottle of motor oil
- Letters on a Quaker State bottle
- One may be for remittance: Abbr.
- Requirement to post back: Abbr.
- Something to include when you want to hear back: Abbr.
- Submission requirement: Abbr.
- NYT crossword submission requirement, once
- Mail submission accompaniment, briefly
- Ms. enclosure
- Kind of enc.
- Letter enc., maybe
- Writer's enc.
- Manuscript enclosure (abbr.)
- Return mail requirement (abbr.)
- Convenient enc.
- Motor oil abbr.
- Business letter enc.
- Freelance writer's encl.
- Contest entry encl.
- Item that might be stamped, for short
- Freelancer's encl.
- Abbr. on cans of motor oil
- Letter encl.
- Motor oil letters
- Submission encl.
- Letter enclosure
- Frat letters
- So, in Dundee
- So, to Scotty
- Ms. letters
- Cover letter letters
- Freelancer's enc.
- Convenient encl.
- Pennzoil letters
- Fan mail encl.
- Phone bill encl.
- Enc. with some bills
- Encl. with a manuscript
- RSVP convenience
- Encl. to an editor
- Encl. with a résumé
- Highlander's "so"
- Letters on a motor-oil can
- Utility bill enc.
- Utility bill encl.
- Letters on an oilcan
- Viscosity letters
- Letters on oil cans
- Letters on motor-oil cans
- RSVP enclosure
- Letter to the editor accompanier: Abbr.
- So: Dial.
- Wha ___ base as be a slave?—Burns.
- So: Scot.
- So: Scotch.
- Engineering group: Abbr.
- Engineers' group: Abbr.
- So, to Burns
- Scotsman's so.
- Auto group: Abbr.
- So, old style
- Engineers' org.
- So, to Scots
- Scottish so
- Thus, in Dundee
- So, in Glasgow
- Had we never loved ___ kindly: Burns
- Thus, to Burns
- Thus, in Glasgow
- So, in Perth
- Extremely, to Burns
- Thus, in Ayr
- Enclosure with a MS
- It might accompany a MS.
- Reply facilitator: Abbr.
- It facilitates replying to a MS.
- Major coll. fraternity
- Bill accompanier: Abbr.
- Letter encl. to facilitate a reply
- Enclosure to an ed.
- Autograph seeker's encl.
- Letter encl. with a manuscript
- Coll. fraternity
- RSVP encl.
- Squid Game character Kang ___-byeok
- Mail enclosure that's ready to send once stamped: Abbr.
- Letters on a can of motor oil
- Motor-oil can letters
- Abbr. on a can of motor oil
- Engineers' assoc.
- Glaswegian's so
- Lubricant std.
- 5W-30 preceder
- Ed.'s request, sometimes
- Car-designing grp.
- MS go-with
- Encl., of sorts
- Common bill encl.
- Aromatic mint
- Cable bill encl.
- Motor oil rating org.
- Reply convenience for an ed.
