[ U ] a white liquid that is a mixture of lime or powdered chalk and water, used for making walls or ceilings white石灰水

[ S ] disapproving an attempt to stop people finding out the true facts about a situation掩蓋真相，粉飾

[ C ] UK informal a complete defeat in a game or competition輕鬆擊敗（對手）；（尤指）完勝

disapproving to make something bad seem acceptable by hiding the truth粉飾，掩蓋…的真相

UK informal to defeat a player or team completely, especially while preventing them from scoring any points輕鬆擊敗（對手）；（尤指）完勝

to paint walls or buildings using whitewash白塗料