Using Black’s Law Dictionary correctly
A recurring mistake — common in the sovereign-citizen orbit — is to treat a definition in Black’s Law Dictionary as if it were binding law: as though quoting a dictionary entry could override a statute, defeat a court’s jurisdiction, or create a right. This page explains, plainly and without condescension, why that doesn’t work — and how the very same dictionary is genuinely useful.
What a dictionary actually is
A legal dictionary describes usage. It reports how a word has been used by courts and lawyers. That is valuable — but description is not enactment. A dictionary is not passed by a legislature, not signed by an executive, and not handed down by a court. So it cannot:
- create a legal right or a legal status;
- repeal or override a statute or regulation;
- strip a court of jurisdiction, or change the meaning a statute gives a term for its own purposes;
- substitute for the actual holding of a case.
Where the misuse goes wrong
Typical patterns: quoting an old edition’s definition of “person,” “driving,” “includes,” or “United States” and treating that entry as if it controlled a statute’s meaning. But when a statute defines its own terms, that statutory definition governs — not the dictionary. And courts read “includes” and similar words in context, under settled canons of construction, not by a dictionary line taken in isolation. Arguments built this way have a long, consistent record of losing in court — not because the courts are hiding a secret, but because a dictionary was never the source of binding law in the first place.
The correct, powerful uses of Black’s (and better tools)
- Understand a term of art so you can read a statute or opinion accurately.
- Evidence of ordinary meaning — and for a constitutional word, a founding-era dictionary is the right tool for original public meaning, as the Supreme Court used in Heller (2008).
- Trace how a term evolved by comparing editions (Black’s 1891 → today; Bouvier’s 1839 for early American usage).
- Then go to the actual authority: the constitution, statutes, and case law themselves — that is where binding law lives.
None of this makes Black’s useless — it makes it a reference, used for what a reference is good for. The failure isn’t reading the dictionary; it’s asking the dictionary to do a job (make law) that no dictionary can do.
See also: what dictionaries are and aren’t · binding vs. persuasive authority · American vs British common law.