Typically speaking, using regular notebook paper and a single envelope, 4 to 5 sheets of paper can be mailed while staying under 1 ounce. The United States Postal Service charges one stamp per ounce...
Relevant evidence, therefore, is evidence that is logically connected to the fact it is intended to establish (Blackwell, 2004). Other forms of the word, such as relevance and relevancy, are often used interchangeably to refer to evidence that is to be considered for admission in a case.
In legal practice the term generally is used to describe two things: the presentation of sufficient evidence by a civil claimant to support the legal claim (a prima facie case), or a piece of evidence itself (prima facie evidence).