lad

noun6

1. •
   a boy or a man who is still young

   • How great is that danger, to which poor lads are now exposed, when placed on shipboard to learn the art of sailing! Five lads, training up for the seas, were now on board this ship; […] — 1776
2. •
   A familiar term of address for a young man.

   • Come here, lad, and help me shift these boxes.
3. •
   (UK) A hedonistic or irresponsible young man; A Jack the lad.

   • I think he reckons he’s a bit of a lad.
   • Last night I was out drinking with the lads.
4. •
   A groom who works with horses.
5. •
   (Internet) A scammer.

   • [...] regardless whether you feel the lads may deserve to be subjected to those types of images. — 2020
6. •
   (Ireland, informal) The penis.

   • — The lad stood to attention anyhow, he said with a sigh. She's a gamey mare and no mistake. — 1922

noun4

1. •
   Abbreviation of left anterior descending artery.
2. •
   Initialism of language acquisition device.
3. •
   Initialism of local authority district.
4. •
   Initialism of leukocyte adhesion deficiency.