A letter expressing love or admiration; esp. one written by a lover to the object of his or her affection. Also in extended use.

A billet-doux. Cf. French poulet ‘a chicken; also, a loue-letter, or loue-message’ (Cotgrave). Obsolete.

a love letter or message.

(a) a love-letter; a line written by a lover (chiefly in plural); now rare; (b) Palmistry = heart line n. at heart, n. int.adv. compounds 3a.

A love-letter. (Now usually jocular.)

Designating a letter or other communication expressing infatuation or extravagant admiration, esp. one sent by a stranger. Frequently in mash note.

An action providing a pleasurable or delicious sensation; love-making; (Naval slang) love-letters. yum-yum girl (euphemistic): a prostitute.