ARPA

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ARPA

/ˈɑɹ.pə/

proper noun

US, abbreviation, acronym, historical Acronym of Advanced Research Projects Agency, renamed to DARPA in 1972.
abbreviation, initialism Initialism of Automatic Radar Plotting Aid
US, abbreviation, acronym Acronym of American Rescue Plan Act This reverses the ARPA provision that lowered the reporting threshold to $600 with no minimum on the number of transactions.
abbreviation, initialism Initialism of Association for Reformed Political Action

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MLA

"ARPA." Wiktionary, via Micwyn, micwyn.com/word/arpa. Accessed 6 Nov. 2026.

APA

ARPA. (n.d.). In Wiktionary, via Micwyn. Retrieved November 6, 2026, from https://micwyn.com/word/arpa

Chicago

"ARPA." Wiktionary, via Micwyn. Accessed November 6, 2026. https://micwyn.com/word/arpa.

BibTeX

@misc{arpa_2026,
  title = {ARPA},
  howpublished = {Wiktionary, via Micwyn},
  year = {2026},
  url = {https://micwyn.com/word/arpa},
  urldate = {2026-11-06}
}