Alternative form of poison-pen letter

(idiomatic) A missive which is malicious, insulting, and/or defamatory toward a person, organization, or point of view, especially one which is unsigned.

plural of letter opener

plural of letter to the editor

(dated) plural of man of letters

plural of scarlet letter

One who takes part in the hobby of letterboxing.

plural of letterboxer

plural of white-letter hairstreak

A small, brown butterfly with a W-shaped white streak, Satyrium w-album, of the family Lycaenidae.