Clerk

A person employed in an office or government agency who performs various tasks such as keeping records or accounts, filing, letter writing, or transcribing. One who works in a store and whose job might include working as a cashier, selling merchandise, or waiting on customers.

A law clerk is either a law student employed by a licensed attorney to do mundane legal tasks and learn the law in the process, or a licensed lawyer working for a judge to aid in the writing and research of the cases before the judge.