noun the younger of two brothers; a younger brother or son; the youngest son.
2. cadet ·add. ·noun a young man who makes a business of ruining girls to put them in brothels.
3. cadet ·noun a gentleman who carries arms in a regiment, as a volunteer, with a view of acquiring military skill and obtaining a commission.
4. cadet ·add. ·noun in new zealand, a young gentleman learning sheep farming at a station; also, any young man attached to a sheep station.
5. cadet ·noun a young man in training for military or naval service; ·esp. a pupil in a military or naval school, as at west point, annapolis, or woolwich.