(dated, fandom slang) To write letters to periodicals very frequently.

plural of lettercol

plural of lettergram

(historical) A telegram longer than an ordinary message and sent more cheaply and with a lower priority.

plural of letterfounder

(printing, historical) One who founds or casts letters or types.

Absence of letters.

A book in which letters (written correspondence) or copies of letters are kept.

plural of letterbook

A form of postal stationery consisting of a folded card with a prepaid imprinted stamp, giving the writer more space than a postcard.