PO box

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PO box^¹

noun PO boxes

A post office box; a lockable box hired from the postal authorities or a private company as a collection point for mail.

PO Box^²

noun PO Boxes

Alternative letter-case form of PO box See also: P.O. Box, Post Office Box

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MLA

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

APA

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

Chicago

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

BibTeX

@misc{po_box_2026,
  title = {PO box},
  howpublished = {Wiktionary, via Micwyn},
  year = {2026},
  url = {https://micwyn.com/word/po%20box},
  urldate = {2026-11-06}
}