quid pro quo /kwid prō kwō/

1. Something given or taken as equivalent to another, often as retaliation or in return for a previous favour
2. The action or fact of giving or receiving thus

• mouthparts
• mouthpiece
• mouthpieces
• mouths
• mouth-to-mouth
• mouthwash
• mouthwashes
• mouthwatering
• mouthy
• mouton
• moutons
• mouvementé
• mou’
• movabilities
• movability
• movable
• movable feast
• movableness
• movablenesses
• movables
• movably
• move
• moveabilities
• moveability
• moveable