Definition of greenhorn:
sonny boy, lad, laddie, babe, newbie, rookie, rook, rustic, recruit, sonny, boor, young carnivore, the uninitiated, learner, yokel, newcomer, tenderfoot, workie, start, abecedarian, cub, novitiate, protege, freshman, punk, fledgling, virgin, colt, tyro, abecedarian.
- "The Adventures of Buffalo Bill", Col. William F. Cody.
- "Camp Fires of the Wolf Patrol", Alan Douglas.
- "Masterman and Son", W. J. Dawson.