Synonyms|46Antonyms|0|Broader|0Narrower|0Related|11
0
postboxes
0
posting box
0
postmark
0
split-screen
0
stamp
0
uncut
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For more, visit Letterbox on Power Thesaurus
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APASmart Define. (2013). letterbox thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/letterbox/thesaurus/synonyms
ChicagoSmart Define. 2013. "letterbox thesaurus" https://smartdefine.org/letterbox/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2013, letterbox thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/letterbox/thesaurus/synonyms>.
MLASmart Define. "letterbox thesaurus" 17 June 2013. Web. 25 September 2026. <https://smartdefine.org/letterbox/thesaurus/synonyms>