open letter

noun

: a published letter of protest or appeal usually addressed to an individual but intended for the general public

Examples of open letter in a Sentence

In an open letter to the company, a citizens' group implored company executives to reconsider their decision to close the factory.

Recent Examples on the Web

Numerous actors, writers, directors, and producers have also signed an open letter in opposition of the merger. — Victoria Bekiempis, Vulture, 3 Aug. 2026

Coinkite has since issued an open letter strongly advising users who generated a wallet seed on Coldcard devices to move their funds as soon as possible. — Camila Grigera Naón, Fortune, 3 Aug. 2026

The debate has continued to rage on, and in late July, Palantir signed an open letter, alongside Nvidia, Microsoft and other companies, defending open-weight AI models as essential for national security. — Seema Mody, CNBC, 3 Aug. 2026

In an open letter released July 28, more than 1,000 employees of AI laboratories urged the government to hit the brakes on AI development to make sure the technology is safe. — Daniel De Visé, USA Today, 31 July 2026

Word History

First Known Use

1898, in the meaning defined above

Rhymes for open letter

• carburetter
• carburettor
• abettor
• newsletter
• typesetter
• better
• bettor
• debtor
• fetter
• getter
• netter
• petter

Kids Definition

open letter

noun

: a letter (as one addressed to an official) for the public to see and printed in a newspaper or magazine