/klu: ||; klu/noun [C] a clue (to sth) a piece of information that helps you solve a problem or a crime, answer a question, etc 线索: The police were looking for clues to his disappearance. 警方正在寻找他失踪的线索。the clues for solving a crossword puzzle 做填字游戏的提示 not have a clue(informal 非正式) to know nothing about sth 一无所知；毫无头绪