Word.ws English Dictionary

555

555 adjective: pertaining to a fake telephone number. The local exchange and area code number 555 was reserved in North American dialing plan for fictional numbers, prior to the 21st century.

Adjective

555 (not comparable)

  1. (Canada, US) Pertaining to a fake telephone number. The local exchange and area code number 555 was reserved in North American dialing plan for fictional numbers, prior to the 21st century.
    • 555-2368, 1-555-321-2368, and (555)234-2368 are all 555 numbers; they aren’t real.
    Synonyms:
    1-311-555-2368, 1-555, 1-555-555-5555, 2368, 555-2368, 555-5555, 555-1212

Synonyms of 555

  • 1-311-555-2368
  • 1-555
  • 1-555-555-5555
  • 2368
  • 555-2368
  • 555-5555
  • 555-1212

Questions about 555

What does 555 mean?
555 means pertaining to a fake telephone number. The local exchange and area code number 555 was reserved in North American dialing plan for fictional numbers, prior to the 21st century.
What part of speech is 555?
555 is an adjective.

Words near 555 in the dictionary

  1. 52verse
  2. 53rd
  3. 540
  4. 540s
  5. 54th
  6. 555
  7. 55th
  8. 56k
  9. 56th
  10. 57-cell
  11. 57-cells

Source and license

Adapted from Wiktionary: 555 (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: “555.” Word.ws, https://word.ws/555. Based on Wiktionary, CC BY-SA 4.0.