Third-person singular simple present indicative form of letter

A person who is professionally employed to add writing to something (as a sign, shop window, etc.)

Marked with letters. / Literate (able to read writing in letters). / Educated, especially having a degree (entitled to put an abbreviation such as BS, MA, PhD, MD after a signature).

simple past tense and past participle of letter

plural of letteral

(idiomatic) Literally, exactly, following the rules as written.

plural of letterer

Alternative form of Lettrism

(dated) A literary man; a scholar or author.

(UK, dated, euphemistic) A condom.