paintball /ˈpeɪntbɔːl/noun 2verb 2forms 3 noun2 •A sport where teams shoot each other with gelatin capsules filled with paint-like dye. •The dye-filled capsule fired in the sport of paintball. verb2 •To engage in the sport of paintball. •To shoot someone using a paintball gun. formspaintballed · paintballing · paintballs