Letter
Letter noun - A message on paper from one person or group to another.
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Synonyms for Letter
Thank-you and letter are semantically related In some cases you can use "Thank-you" instead a noun "Letter".
Thank-you
Letter and thank-you are semantically related in note topic. You can use "Letter" instead a noun phrase "Thank-you", if it concerns topics such as written communication.
Mutual synonyms
Both words in one sentence
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When the only reward he got was a thank-you note addressed to Bart, he sent him an abusive letter in return.
Source: Wants a Prize for Basic Decency -
In The Adventures of Superman episode "The Birthday Letter", after Superman gives a little girl stricken with polio a flight around Metropolis, she kisses him on the cheek as a platonic thank-you.
Source: Anywhere but Their Lips -
And whose thank-you letter was finally sent and is sitting unopened at Bob's house.
Source: Film / Return to Me
Cite this Source
Thank-you and Letter. (2016). Retrieved 2026, July 31, from https://thesaurus.plus/related/letter/thank-you
Letter & Thank-you. N.p., 2016. Web. 31 Jul. 2026. <https://thesaurus.plus/related/letter/thank-you>.
Thank-you or Letter. 2016. Accessed July 31, 2026. https://thesaurus.plus/related/letter/thank-you.