n .
a pleasant or inoffensive expression used in place of an unpleasant or offensive one 불쾌감을 주거나 무례한 표현 대신에 사용하는 완곡한 표현

• Aunt Gladys, who couldn't bring herself to say the word death, said that Uncle George had taken the big bus uptown. "Taking the bus uptown" was her euphemism for dying.
• The sex-education instructor wasn't very effective. She was so embarrassed by the subject that she could only bring herself to speak euphemistically about it.