IL

As an abbreviation, IL may refer to:

Israel, as ISO 3166-1 alpha-2 country code
Lankair, an airline, as IATA designator
Internet Link protocol, developed originally as part of Plan 9 from Bell Labs
Illinois, as United States postal abbreviation
Ilmenau, a town in Thuringia, in German former vehicle registration plates (newer plates show IK for Ilm-Kreis)
Image-Line
International League, Class Triple-A league in North American Minor League Baseball
Instruction list, an IEC 61131-3 programming language
Common Intermediate Language, the compiled form of .NET code
Common Language Infrastructure, originally named Microsoft Intermediate Language

the following singular IL abbreviations may have as plural ILs: Interleukin, a family of cytokines, in biochemistry
Intermediate language, usually the Common Intermediate Language (CIL), in computer science
Introgression line, in plant genetics
Ionic liquid, in chemistry including pharmaceutics, food science
infralimbic prefrontal cortex nucleus
aircraft made or designed by Ilyushin, a Russian design bureau and aircraft manufacturer

il may also be: the third-person singular masculine personal pronoun he, or the expletive pronoun it (as in 'it rains', il pleut), in French language
one of the masculine definite articles in Italian language
the term for 'province' in Turkey, see Provinces of Turkey
.il, the Internet Top Level Domain (TLD) code for Israel
Il (Shugo Chara!), a character from the manga series Shugo Chara! by Peach-Pit

Translation

The word "IL" occurs as such in the following languages: English, Czech, German, French, Korean, Italian, Lithuanian, Japanese, Portuguese, Slovenian, Swedish.

Translation(s) in other languages: Esperanto: Il, Ripuarian: IL (Watt ėßß datt?), Finnish: Il.