- (dated) An exclamation of mild surprise; lawks.
- A particular such rule.
"A new law forbids driving on that road."
- (mathematics) A statement that is true under specified conditions.
- (slang, uncountable) The police.
"Here comes the law — run!"
- (obsolete) a tumulus of stones
- (uncountable) The body of rules and standards issued by a government, or to be applied by courts and similar authorities.
"By law, one is not allowed to own a wallaby in New York City."
- (sciences, strictly) A well-established, observed physical characteristic or behavior of nature. The word is used to simply identify "what happens," without implying any explanatory mechanism or causation. Compare to theory.
"Newton's third law of motion states that to every action there is always an equal and opposite reaction. This is one of several laws derived from his general theory expounded in the Philosophiæ Naturalis Principia Mathematica."
- (cricket) One of the official rules of cricket as codified by the MCC.
- An oath, as in the presence of a court. See wager of law.
- (more generally) A written or understood rule that concerns behaviours and their consequences. Laws are usually associated with mores.
""Do unto others as you wish them to do unto you" is a good law to follow."
- A category of English "common law" petitions that request monetary relief, as opposed to relief in forms other than a monetary judgment; compare to "equity".
- (fantasy) One of the two metaphysical forces of the world in some fantasy settings, as opposed to chaos.
- (Scottish and northern dialectal, archaic) a hill