Definition of "L"

L¹

/ɛl/

letter
upper case, lower case l, plural Ls or L's
1. The twelfth letter of the English alphabet, called el and written in the Latin script.
number
upper case, lower case l
1. The ordinal number twelfth, derived from this letter of the English alphabet, called el and written in the Latin script.

L²

noun
1. (sports) The statistic for the number of losses by a team or player limited by some criteria (e.g. this season, at home, on turf).
2. Alternative form of el (“elevated train”).
  Quotations
  PLEASE! HELP US KEEP THE "L" AND SUBWAY CLEAN
  1925 February 21, “Co-operation”, in The New Yorker (cartoon), page 2
3. (US, politics) Abbreviation of Libertarian.
4. Initialism of left.
5. Initialism of Latin.
6. (usually clothing, singular only) Initialism of large (the manufactured size or an item of that size).
7. Initialism of lira.
8. Initialism of loss.
9. Initialism of lobby.
10. Abbreviation of low pressure front.
11. (textiles) Initialism of ligne.
12. Initialism of lesbian.
  Quotations
  L wntd to share spacious JP apt w/veget non-smkng indep quiet L, dog, cat.
  1983 April 23, “Classified advertisement”, in Gay Community News, page 14
13. (slang) two cigarette papers laid perpendicularly on each other when making a joint
adjective
not comparable
1. (usually clothing) Initialism of large (of the manufactured size).
2. Initialism of left.
3. (linguistics) Initialism of low (variety of a language with limited prestige and official acceptance).
4. (slang) (from loser) Subpar, of inferior quality.