1. A reciprocal group action
   - return, paying back

Type of: group action

• kaftan
• kagu
• Kahane Chai
• kahikatea
• Kahlil Gibran
• Kahlua
• Kahn
• Kahoolawe
• Kahoolawe Island
• kahuna
• kai
• kai apple
• kail
• kainite
• kainogenesis
• Kaiser
• Kaiser Bill
• kaiser roll
• Kaiser Wilhelm
• kaizen
• kaka
• kakapo
• Kakatoe
• Kakatoe galerita
• Kakatoe leadbeateri