преследвач означава в английски

chaser [chasers]▼(a person or thing (ship, plane, car, etc.) who chases)
noun
[UK: ˈtʃeɪ.sə(r)] [US: ˈtʃeɪ.sər]

follower [followers]▼(pursuer)
noun
[UK: ˈfɒ.ləʊə(r)] [US: ˈfɒlo.ʊə(r)]

pursuer [pursuers]▼(one who pursues)
noun
[UK: pə.ˈsjuːə(r)] [US: pər.ˈsuːər]