first time UK /fɜːst taɪm/US /fɜɹst taɪm/noun 1verb 1first-time adjective 1forms 3 noun1 •(euphemistic) An individual's first instance of sexual intercourse.Do you remember your first time? verb1 •To try for the first time.I'm first timing this game.Looking forward to first time this champion in my ranked games. first-time adjective1 •Happening for the first time; doing something for the first time.As a first-time skydiver, I felt more than a little nervous. formsfirst timed · first timing · first times