sl.

noun1

1. •
   Abbreviation of slang.

adjective3

1. •
   sine loco (without place [of publication])
2. •
   Initialism of sublingual.
3. •
   Initialism of straight-looking.

noun7

1. •
   slip
2. •
   Initialism of source language.
3. •
   Abbreviation of Scotland: a constituent country of the United Kingdom.
4. •
   Initialism of sharia law.
5. •
   Initialism of sentential logic.
6. •
   Initialism of steam launch.
7. •
   (historical) Initialism of serjeant-at-law.