(transitive) To go after in order to catch, catch up to or find something or someone; to pursue, to give chase. / (transitive) (for a road) To lead in a particular direction. / (transitive) To conform to, to adhere to (another person's behavior, set of rules, teachings etc.). / (transitive) To watch, to pay attention to something. / (transitive, law) To investigate, to look into an alleged crime. / (transitive) To observe a work, study etc.; to monitor. / (transitive) To come after, to succeed. / (transitive, social media) To subscribe to.