Academic misconduct is anything which is against the rules which govern the assessment of work, and includes things like plagiarism, commissioning and collusion. There are definitions of all these words in the Regulations on Academic Misconduct which you can find on the University website and you will also be sent a copy or a link.
The most common types of academic misconduct are:
Plagiarism: This is the presentation of another's work as your own, whether intentional or otherwise. Any work identified as coming from an unattributed source will be classified as plagiarism
Collusion: Working with another student to produce work, in order to obtain an advantage for either or both students
Commissioning: Requesting another person to write or re-write work in order to obtain an unfair advantage. At the most serious end of the scale this offence includes paying an individual or company to produce work for you to submit as your own. However, payment need not be involved and it can also include the situation where you have asked someone (such as a friend, family member or former teacher) to help you write work which you submit for assessment.
Duplication: You can only submit the same work for assessment once. If you do so again, whether it is for the same or another course, this may be considered as duplication.