(dated, fandom slang) Correspondence, usually a letter, sent to a periodical commenting on either the contents of a previous issue or an earlier letter of comment.

plural of letter of comment

plural of Sloan letter

Any of a set of standard optotypes resembling the letters C, D, H, K, N, O, R, S, V and Z.

A member of a non-denominational movement within Christianity, especially evangelicalism, that emphasises political activism on issues of social justice about which Jesus has made pronouncements.

plural of lettergram

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

Alternative form of letter-perfect

plural of letter case

plural of dead letter