cadet

American Heritage® Dictionary of the English Language, Fourth Edition

1. n. A student at a military school who is training to be an officer.
2. n. A younger son or brother.
3. n. A youngest son.
4. n. Slang A pimp.

Century Dictionary and Cyclopedia

1. n. The younger or youngest son.
2. n. Hence One of the younger members, or the youngest member, of any organized association or institution.
3. n. One who carried arms in a regiment as a private, but solely with a view to acquiring military skill preparatory to a commission. His service was voluntary, but he received pay, and was thus distinguished from a volunteer.
4. n. A young man in training for the rank of an officer in the army or navy, or in a military school. Specifically— One who is under training for a commission in the army or navy by a course of instruction and military discipline in the United States Military Academy at West Point, or the United States Naval Academy at Annapolis. Cadets are nominated for admission, after examination, by the President or a member of Congress.
5. n. An East Indian bird, Æthopyga miles, a species of fire honey-sucker, of the family Nectariniidæ.
6. n. A young man who, for the sake of the practical experience to be gained, works with the men on a sheep- or cattle-farm without pay.
7. n. A student in engineering or any of the applied sciences who, in completion of his course (or earlier), seeks practical experience by entering the service of some large establishment where the principles be has been studying are applied, and works there for little or no pay.
8. n. One who prostitutes a woman and lives on her earnings as a prostitute while cohabiting with her; also, one who seduces young women and sells them to houses of prostitution.

Wiktionary

1. n. A student at a military school who is training to be an officer.
2. n. A younger or youngest son, who would not inherit as a firstborn son would.
3. n. in compounds Junior. (See also the heraldic term cadency.)

GNU Webster's 1913

1. n. The younger of two brothers; a younger brother or son; the youngest son.
2. n. A gentleman who carries arms in a regiment, as a volunteer, with a view of acquiring military skill and obtaining a commission.
3. n. 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.
4. n. In New Zealand, a young gentleman learning sheep farming at a station; also, any young man attached to a sheep station.
5. n. Slang, U. S. A young man who makes a business of ruining girls to put them in brothels.

WordNet 3.0

1. n. a military trainee (as at a military academy)