用做名詞的時候, 意思是:something you say or do to show what you know or want. 就是說用語言或行動來表示你想要的或者是知道的事情．
eg:He"s dropped (= given) several hints to the boss that he"ll quit if he doesn"t get a promotion.
Did she give you any hints about where she was going?
You can"t take (= understand) a hint, can you? Just go away and leave me alone!
做動詞用的時候， 意思是：暗示．
eg:Mum"s hinted (that) she might pay for my trip to Mexico if I pass all my exams.
He"s hinted at the possibility of moving to America.
clue 一般都用做名詞．意思是：a sign or some information which helps you to find the answer to a problem, question or mystery, 就是說一般都是一種訊號或者是資訊， 能夠使我們找到一個問題， 或者迷團的答案．很多時候我們解釋為線索．
eg：1．Police are still looking for clues in their search for the missing girl.
2．I"m never going to guess the answer if you don"t give me a clue.
hint 可以用做名詞和動詞.
用做名詞的時候, 意思是:something you say or do to show what you know or want. 就是說用語言或行動來表示你想要的或者是知道的事情．
eg:He"s dropped (= given) several hints to the boss that he"ll quit if he doesn"t get a promotion.
Did she give you any hints about where she was going?
You can"t take (= understand) a hint, can you? Just go away and leave me alone!
做動詞用的時候， 意思是：暗示．
eg:Mum"s hinted (that) she might pay for my trip to Mexico if I pass all my exams.
He"s hinted at the possibility of moving to America.
clue 一般都用做名詞．意思是：a sign or some information which helps you to find the answer to a problem, question or mystery, 就是說一般都是一種訊號或者是資訊， 能夠使我們找到一個問題， 或者迷團的答案．很多時候我們解釋為線索．
eg：1．Police are still looking for clues in their search for the missing girl.
2．I"m never going to guess the answer if you don"t give me a clue.
例句1如果用hint 來代替的話就不合適， 因為hint就是有人暗示的， 而clue是線索．
clue 加less 是形容詞．
clue 用做動詞，是向某人介紹情況． 有固定的搭配． 是clue sb in/up向某人介紹最近發生的事情．
He"d been out of the country for weeks, so I clued him in on all that"s been happening.
由於他離開這個國家有好幾個星期了， 我向他介紹了他離開其間的時事．