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

• slow food
• slow-footed
• slow-gaited
• slow handclap
• slow-hound
• slow-hounds
• slowing
• slowings
• slowish
• slow loris
• slowly
• slow march
• slow-march
• slow-marched
• slow marches
• slow-marching
• slow-marchs
• slow match
• slow matches
• slow motion
• slow-motion
• slow-moving
• slowness
• slownesses
• slow neutron