Synonyms|4Antonyms|0|Broader|1Narrower|0Related|0
3
Post-Office box
2
PO Box
2
call box
1
letter box
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APASmart Define. (2011). POB thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/pob/thesaurus/synonyms
ChicagoSmart Define. 2011. "POB thesaurus" https://smartdefine.org/pob/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2011, POB thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/pob/thesaurus/synonyms>.
MLASmart Define. "POB thesaurus" 26 April 2011. Web. 21 September 2026. <https://smartdefine.org/pob/thesaurus/synonyms>