Teenage/ˈtiːneɪdʒ/ Definition 1 of 1Pro Tip 1/3Age Specific The word 'teenage' is used specifically for people between 13 and 19 years old. His teenage son is learning to drive. Pro Tip 2/3Growth Phase 'Teenage' often refers to the period of significant growth, both physically and emotionally. Teenage years are often marked by rapid changes. Pro Tip 3/3Cultural Image In many cultures, 'teenage' evokes images of rebellion, social changes, and coming of age. Teenage rebellion is a common theme in movies.