cadet

noun6

1. •
   A student at a military school who is training to be an officer.
2. •
   (Australia) A participant in a cadetship.
3. •
   (New-Zealand, historical) A young gentleman learning sheep farming at a station; also, any young man attached to a sheep station.
4. •
   A younger or youngest son, who would not inherit as a firstborn son would.

   • Bertram is certainly well off for a cadet of even a Baronet's family. By the time he is four or five and twenty he will have seven hundred a year, and nothing to do for it. — 1814
5. •
   [in compounds] Junior. (See also the heraldic term cadency.)
6. •
   (slang, no longer used) A young man who makes a business of ruining girls to put them in brothels.