Legal dictionaries contain the legal definitions for legal terms. In most cases, legal dictionaries do not specifically cite cases which involve the terms, but some legal dictionaries are more extensive than others.
There are legal dictionaries which are for laymen or for those that simply wish to understand basic legal terms. There are also legal dictionaries which are utilized by those in the legal profession.
A legal dictionary can be found in the library or book store, but they can also be found online. In general, online legal dictionaries have links which apply to famous cases which may involve a specific legal term.
For example, each term may have the definitions listed beside the term, as well as court cases which may have been about the term. Constitutional law for example, may list famous constructional law cases, with a link beside it.