What is the meaning of Cadet?

A student at a military school who is training to be an officer.

A younger or youngest son, who would not inherit as a firstborn son would.

Junior.

A young man who makes a business of ruining girls to put them in brothels.

A young gentleman learning sheep farming at a station; also, any young man attached to a sheep station.

A participant in a cadetship.

younger, youngest

cadet, student officer

junior sportsperson, young player

a younger sibling

third-person singular future active indicative of cadō

cadet

Source: wiktionary.org