if you make a clean sweep, you win a competition or an election very easily or you win all the prizes in a competition.

China's women divers achieved a clean sweep in yesterday's competitions.

Analysts are predicting a clean sweep for the ruling party in the forthcoming elections.

• turn out something
• turn over
• turn over a new leaf
• turn queen's evidence
• turn someone against
• turn someone against someone
• turn someone against something
• turn someone away
• turn someone loose
• turn someone off
• turn someone on
• turn someone out
• turn someone out of
• turn someone out of somewhere
• turn someone over
• turn something against
• turn something against someone
• turn something against something
• turn something around
• turn something away
• turn something inside out
• turn something loose
• turn something on its ear
• turn something on its head
• turn something over