1. (

• cavalryman ,
• trooper ,

) a soldier in a motorized army unit ;

2. (

• trooper

) a mounted police officer ;

3. (

• trooper ,
• state_trooper

) a state police officer ;

4. (

• cavalryman ,
• trooper ,

) a soldier mounted on horseback; "a cavalryman always takes good care of his mount" ;