blue box

English

AI In plain words

Writing a short explanation…

Written by a house AI from the entry below, in your language. The entry itself is the source.

blue box

noun blue boxes

Canada, UK A blue container used for the collection of household waste (such as tin cans and newspapers) for recycling by a municipal authority.
historical An electronic device used to bypass payment on a tone pulse telephone system. This was before Wozniak—known among the cognoscenti as Woz—almost woke up the Pope by calling the Vatican on his famed illegal "blue box," before he invented the Apple II and helped launch the personal computer industry, and before he gave up his brilliant engineering career and became a public scho
US, informal A "tornado watch" notification category. See also: severe thunderstorm watch
US, abbreviation, ellipsis Ellipsis of USPS blue box
Used other than figuratively or idiomatically: see blue, box.

Talk about this word

Cite this

MLA

"blue box." Wiktionary, via Micwyn, micwyn.com/word/blue%20box. Accessed 6 Nov. 2026.

APA

blue box. (n.d.). In Wiktionary, via Micwyn. Retrieved November 6, 2026, from https://micwyn.com/word/blue%20box

Chicago

"blue box." Wiktionary, via Micwyn. Accessed November 6, 2026. https://micwyn.com/word/blue%20box.

BibTeX

@misc{blue_box_2026,
  title = {blue box},
  howpublished = {Wiktionary, via Micwyn},
  year = {2026},
  url = {https://micwyn.com/word/blue%20box},
  urldate = {2026-11-06}
}