Chaser
Part of speech: noun
Definition: A person or thing (ship, plane, car, etc.) who chases. Originally, a horse used for hunting; now, a horse trained for steeple-chasing, a steeple-chaser. A hunter. Someone who chases metal; a person who decorates metal by engraving or embossing. A tool used for cutting the threads of screws. A mild drink consumed immediately after another drink of hard liquor. Someone that follows logs out of the forest in order to signal a yarder engineer to stop them if they become fouled - also called a frogger. one who unhooks chokers from the logs at the landing.
Example sentence: You'll be old and you never lived, and you kind of feel silly to lie down and die and to never have lived, to have been a job chaser and never have lived.
Pursuer
Part of speech: noun
Definition: One who pursues.The party who initiates a lawsuit; a plaintiff.