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.

Similar
1-311-555-23681-5551-555-555-55552368555-2368555-5555555-1212
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Meanings

adjective555 (not comparable)
  1. CanadaUSnot comparablefictionPertaining 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 & antonyms

adjectivePertaining 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.

Similar
1-311-555-23681-5551-555-555-55552368555-2368555-5555555-1212

Rhymes & wordplay

Sounds the same

five
Cite this entry
APA

555. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/555

MLA

“555.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/555. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “555,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/555.

Source: 555 on Wiktionary, CC BY-SA 4.0.