An official letter on matters of common interest, sent to members of a church. / A letter from the sovereign addressed to a dean and chapter, naming the person they are to elect bishop.

(finance) A publication for investors etc. giving an overview of market conditions.

(Singapore) Official notice of a composition fee (a fine).

(US) Of or relating to a fraternity, sorority, or honor society.

(nautical, historical) An official commission from a government authorizing someone to seize the property or people of another nation in reprisal for a similar seizure by a ship from the other nation.

A formal letter sent to an editor, literary agent or publisher in order to propose an idea for a written work.

(historical) a safe-conduct, a document guaranteeing safe passage through hostile territory / a document affirming a person’s lack of a criminal record given as part of a background check

A type of magical power located within letters, especially of Hebraic, Arabic, or Runic scripts.

plural of letter-box

(law) A letter from a settlor to their trustees or a testator to their executors containing non-binding instructions.