Synonyms|46Antonyms|0|Broader|0Narrower|0Related|11
3
letter box(noun, expression, idiom, box, mailbox)
3
mailbox(noun, postbox, maildrop)
3
postbox(noun, mailbox, maildrop)
2
letter-box
1
mail drop(noun, expression, idiom, mailbox, maildrop)
1
maildrop(noun, mailbox, postbox)
1
pillar box(noun, expression, idiom, mailbox, postbox)
0
3-d
0
accommodation address
0
animated
0
arch
0
art-house
0
black-and-white
0
box
0
call box(expression, idiom)
0
collection box
0
collection point
0
documentary
0
door
0
doorbell
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APASmart Define. (2013). letterbox thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/letterbox/thesaurus/synonyms
ChicagoSmart Define. 2013. "letterbox thesaurus" https://smartdefine.org/letterbox/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2013, letterbox thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/letterbox/thesaurus/synonyms>.
MLASmart Define. "letterbox thesaurus" 17 June 2013. Web. 21 September 2026. <https://smartdefine.org/letterbox/thesaurus/synonyms>