protagonist /prə- or prō-tagˈə-nist/

1. Orig the chief actor, character or combatant
2. Now often applied to any (or in pl, all) of the main personages or participants in a story or event
3. (loosely) a champion or advocate

• booing
• book
• bookable
• book-account
• book-accounts
• bookbinder
• bookbinderies
• bookbinders
• bucket seat
• bucket seats
• bucket shop
• bucket shops
• bucket-wheel
• bucket-wheels
• buckeye
• buckeyes
• buck fever
• buck fevers
• buckhorn
• buckhorns
• buckhound
• buckhounds
• buckie
• buckies
• bucking