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

• outsider
• outsider art
• outside right
• outside rights
• outsiders
• outsides
• outsight
• outsights
• outsing
• outsit
• outsits
• outsitting
• outsize
• outsized
• outsizes
• outskirts
• outsleep
• outsleeping
• outsleeps
• outslept
• outsmart
• outsmarted
• outsmarting
• outsmarts
• outsoar