Ejusdem generis
The ejusdem generis rule is a rule of construction which provides that where a contract condition or clause sets out a list of specific matters so as to create a common category and the specific matters are followed by general words, the courts will construe the general words restrictively so as to confine those words to the common category. For example, the phrase 'and all other deleterious materials' coming after a list of deleterious materials will be construed restrictively.
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