ELF

• IPA^(key): /ɛlf/
• Rhymes: -ɛlf

ELF (uncountable)

1. (file format) Acronym of Executable and Linking Format (a common object file format for Unix)
   • 2016, Ryan "elfmaster" O'Neill, Learning Linux Binary Analysis, page 97:

     In ELF executables, there aren't a whole lot of code caves (such as in the PE format), so you are not likely to be able to shove more than just a meager amount of shellcode into existing code slots […]

2. (electronics) Initialism of extremely low frequency.

   Coordinate terms: LF, VLF

3. (linguistics) Acronym of English as a Lingua Franca (English used by non-native speakers)

   Coordinate term: Globish

   • 2012, Anna Mauranen, Exploring ELF: Academic English Shaped by Non-native Speakers, Cambridge University Press, →ISBN, page 3:

     The consequences of the massive volume of ELF to English taken as a whole, as the aggregate use of the language, is essentially a descriptive issue: what new features of English are emerging and taking hold?

• (computing): DWARF
• (electronics): LW, MW, RF, SW

ELF

1. Initialism of Earth Liberation Front (a radical environmentalism group)
   • 2022 May 26, Matthew Wolfe, “The Rise and Fall of America’s Environmentalist Underground”, in The New York Times‎, →ISSN:

     In the late 1990s, the ELF became notorious for setting fire to symbols of ecological destruction, including timber mills, an S.U.V. dealership and a ski resort.

2. Initialism of Elvish Linguistic Fellowship (an organization that studies the invented languages of J. R. R. Tolkien)
3. Initialism of Endangered Language Fund (a non-profit organization)

• EFL