The phrase “open letters” has 4 syllables: o-pen let-ters
It's pronounced as /ˈoʊ.pən ˈlɛ.tɚz/
What is synonym and antonym for open letters?
In the thesaurus, “open letters” has 20 synonyms.
Here are synonyms for open letters along with examples of usage in sentences.
On this page you'll find 20 synonyms or another words to open letters, such as: airmails, billets-doux, cards, communications, dispatches, e-mails, electronic mails.
Make sure to choose synonyms and antonyms that are appropriate for the context of the sentence.