To use a mild or indirect word or expression to replace one considered too harsh or blunt. She tried to euphemize the bad news by saying the project was delayed rather than canceled.
To refer to (something unpleasant or taboo) by means of a euphemism, so as to make it sound more acceptable or less harsh. The company euphemized its mass layoffs as a "work-force reduction."
To speak or write using euphemisms. Officials tend to euphemize when talking about civilian casualties.