1) Coach 
• (n.) A coachman. • (n.) A coach horse. • (n.) One who coaches; • (n.) one of the side at the bat posted near first or third base to direct a base runner.
Coach'er noun 1. A coachman. [ Obsolete] 2. A coach horse. 3. One who coaches; specif. (Baseball) , one of the side at the bat posted near first or third base to direct a base runner. 
a person who coaches; coach. · See