8 letters · 15 points in Scrabble
noun a military recruit who is assigned menial tasks
noun a person serving a sentence in a jail or prison
originFrom yard + bird. Attested since 1956 in the sense of ‘convict,’ derived from the idea of prison yards. During World War II, it meant ‘basic trainee’ among the armed forces.
Etymology from Wiktionary, CC BY-SA 3.0