IPA: //ˈpɪstəˌlɪr//
KK: /ˈpɪstəˌlɪr/
A person who carries or uses a pistol, often in a military or combat context.
The pistoleer took aim at the target with precision.
Pistoleer → The word originates from the French 'pistolet' (meaning a small firearm or pistol) combined with the suffix '-eer' (meaning one who). A pistoleer is thus one who uses or is skilled with a pistol.
Think of someone who is skilled with a 'pistol' ('pistolet') — the '-eer' indicates a person, so a pistoleer is someone who uses a pistol.