Word.ws English Dictionary

x64

x64 is the contraction of x86-64.

Meaning of x86-64

Proper noun

x86-64

  1. A superset of the x86 instruction set architecture, providing additional support for 64-bit addressing while remaining mostly backward compatible with older applications.
    Synonyms:
    AMD64, x64

Synonyms of x64

Origin of x64

Contraction.

Questions about x64

What is x64 the contraction of?
X64 is the contraction of x86-64.

Words near x64 in the dictionary

  1. X/Windows
  2. X0 system
  3. X11
  4. X17 particle
  5. X17 particles
  6. x64
  7. x86
  8. x86-16
  9. x86-32
  10. x86-64
  11. x86`lowbar`64

Source and license

Adapted from Wiktionary: x64 (page history and authors); x86-64 (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

Last updated:

Cite this entry: “x64.” Word.ws, https://word.ws/x64. Based on Wiktionary, CC BY-SA 4.0.