From Wiktionary, the free dictionary
Jump to navigation Jump to search
See also: fl, Fl, fl., Fl., and




  1. (international standards) Indeterminately reserved ISO 3166-1 alpha-2 country code for Liechtenstein.
    Synonym: LI (for general use)

Usage notes[edit]

This is an indeterminately reserved code, included as part of ISO 3166-1 due to its use in designating road vehicles under the 1949 Geneva Convention on Road Traffic and 1968 Vienna Convention on Road Traffic, and is not endorsed for general use by the ISO. The general-purpose code for Liechtenstein is LI.


Alternative forms[edit]


  • (file)


FL (plural FLs)

  1. Abbreviation of foreign language.
  2. (aviation) Abbreviation of flight level.
  3. (slang, now chiefly historical) Abbreviation of French letter.
    • 1954, Doris Lessing, A Proper Marriage, HarperPerennial, published 1995, page 41:
      ‘Well, what did he recommend? Those effells are a pain in the neck, only for bachelors.’
    • 2005, Shilpa Agarwal, Haunting Bombay:
      Used and discarded Fls–French letters–floated in the slime, little opaque vessels carrying human seed into oblivion.
    • 2012, Ian McCall, Going Going Gone, page 94:
      You could buy FLs quietly in chemists' shops and often in barber shops.

Proper noun[edit]


  1. Florida, a state of the United States of America.
  2. Flevoland, a province of the Netherlands.