corporal

corporal is a Noun

Definition:

[1] A noncommissioned officer, next below a sergeant. In the United States army he is the lowest noncomissioned officer in a company of infantry. He places and relieves sentinels. Corporal`s guard, a detachment such as would be in charge of a corporal for guard duty, etc.; hence, derisively, a very small number of persons. -- Lance corporal, an assistant corporal on private`s pay. Farrow. -- Ship`s corporal (Naut.), a petty officer who assists the master at arms in his various duties.