redshirt

A college athlete who is allowed to practice with the varsity team but is kept out of competition for one year in order to extend the athlete’s period of eligibility.

To make (a student) a redshirt.

an athlete who spends a year not participating in official athletic activities, but does not lose his or her eligibility to participate in following years

to place an athlete in a status wherein the athlete will spend a year not participating in official athletic activities, but will not lose his or her eligibility to participate in following years.

To hold a child out of kindergarten for one year in the hope that the child will do better academically and socially.

A person responsible for loading and unloading weapons, artillery, and equipment from aircraft.

An unimportant character introduced only to be killed in order to underscore the peril to the important characters; an expendable character.