These words are not close in meaning and so I cannot do any better than refer you to dictionaries. Do you want to understand how they are used in specific contexts? If so, I suggest you post these contexts and perhaps we can help you more.
July 28, 2015
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As Michael said, there is no similarity between the words.
Your example does not make sense, sorry.
Institution is an organisation. Some words from a dictionary: 机构 or 机关 or 事业 (I don't know which is best)
Regulation is a rule or law. 规定 or 规则 or 条例
July 28, 2015
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Still haven’t found your answers?
Write down your questions and let the native speakers help you!