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

• headstocks
• headstone
• headstones
• head-stream
• head-streams
• headstrong
• heads-up
• heads-ups
• heads will roll
• head teacher
• head teachers
• head-tire
• head-tires
• head to head
• head-to-head
• head up
• head-up display
• head voice
• head voices
• head waiter
• head waiters
• headwall
• headwater
• headwaters
• headway