cadet

noun

1. 1.A student at a military school who is training to be an officer.
2. 2.A younger or youngest son, who would not inherit as a firstborn son would.
3. 3.(in compounds, chiefly in genealogy) Junior. (See also the heraldic term cadency.)
4. 4.A young man who makes a business of ruining girls to put them in brothels.
5. 5.A young gentleman learning sheep farming at a station; also, any young man attached to a sheep station.