22
message(noun, communication, mark, note, line)
18
note(noun, communication, mark, create, sign)
14
dispatch(noun, communication, mark, note, line)
14
missive(noun, communication, mark, note, line)
13
epistle(noun, communication, mark, note, language)
13
character(noun, mark, sign, representation, symbol)
12
memorandum(noun, communication, mark, note, line)
11
line(noun, communication, mark, note, draw)
11
report(noun, verb, communication, mark, note)
10
communication(noun, note, line, notice, statement)
10
correspondence(noun, correspondence)
10
sign(noun, verb, activity, mark, character)
9
inscribe(verb, activity, mark, note, create)
9
stamp(noun, verb, activity, make, mark)
9
symbol(noun, mark, character, sign, indication)
9
type(noun, mark, character, sign, picture)
7
billet(noun, communication, indication, dispatch, correspondence)
6
answer(noun, communication, wave, dispatch, greeting)
6
acknowledgment(noun, communication, note, welcome, wave)
6
initial(verb, activity, check, stain, blemish)
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APASmart Define. (2015). letter thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/letter/thesaurus/synonyms
ChicagoSmart Define. 2015. "letter thesaurus" https://smartdefine.org/letter/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2015, letter thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/letter/thesaurus/synonyms>.
MLASmart Define. "letter thesaurus" 10 April 2015. Web. 20 September 2026. <https://smartdefine.org/letter/thesaurus/synonyms>