A boy or young man. / (Britain) A Jack the lad; a boyo. / A familiar term of address for a young man. / A groom who works with horses. / (Ireland, colloquial) The penis.

(anatomy, medicine) Abbreviation of left anterior descending artery. / (England, government) Initialism of local authority district.

plural of lad / (Northern England, Tyneside, Ireland) A group of friends, regardless of gender. Often the lads.

(UK, obsolete, slang) A male cobbler (shoe repairer).

(rail transport, UK) A young man employed in a signalbox to record the times of trains as they pass through the area served by the signalbox.

(UK, slang) a person who engages in unusual and/or dangerous behavior, typically in a light-hearted manner

(historical, US, politics, sexuality, LGBT, slang) A homosexual male.

(rail transport, dated, Britain) A young male employee in a signal box who records the movement of trains past the box.

(mining, historical) A craneman working with tubs and flats.

(UK, informal) A magazine aimed at young men, typically containing suggestive photographs of female models and articles about cars, tools, music, film, sport, and sexual encounters.