Focus on the pronunciation of pioneer
English definition of “pioneer”
/ˌpaɪəˈnɪər/ verb [T]
› to be the first person or organization to start work in a new area, introduce a new idea, etc.: He is chief content officer of Netflix, the company that pioneered mailed rentals of DVDs. Most major airlines have had to adopt many of the cost-saving innovations pioneered by their low-cost competitors.