fifteennumberuk /ˌfɪfˈtiːn/ us /ˌfɪfˈtiːn/
- They hadn't lost an election in fifteen years.
- She was barely fifteen when she won her first championship.
- She has served on the committee for the last fifteen years.
- He's decided to stand down after fifteen years as managing director.
- The levels of trade union and political activism in this country have greatly declined in the past fifteen years.