Legal glossary

Canons of construction

Canons of construction (legal definition): The rules of thumb courts use to interpret statutes, regulations and contracts, such as plain meaning, reading words in context, giving every word effect and the rule of lenity. Courts apply them as guides, not as rigid commands.

Canons of construction — a study group reading together

What canons of construction means

In practice, you will see canons of construction definition in pleadings, motions, orders and court rules. The definition above explains the general meaning. Even so, the meaning can shift with context. Therefore, always read it alongside the rule or document where it appears.

Where canons of construction definition comes up

The term is used across many kinds of cases. For example, you may see it in pleadings, motions and court orders. To see it in context, browse the motions and procedures library or the Learn the Law topics.

Read the source: Canons of construction guide.

How to research the term

To research canons of construction definition, begin with the rule, statute or contract where the word is used. Each one can give it a slightly different meaning. Then compare that text with how courts in your area have applied it. Also check the local rules of your court, since they can add requirements. If your case is in state court, the state rules control. So start with our state procedures guide to find them. In the end, always confirm that the source you rely on is current.

You can read the current federal court rules online for free.

Related legal terms

  • Brief: a written legal argument submitted to a court. Appellate briefs follow detailed rules on contents, length and format (Fed. R. App. P. 28, 32), and trial courts receive briefs supporting or opposing motions. An amicus curiae brief is filed by a non-party (Fed. R. App. P. 29).
  • Burden of proof: the obligation to prove a fact or claim to the required standard.
  • Canon: a rule or principle. In law, the word usually refers to the canons of construction, the rules courts use to interpret statutes and contracts, such as reading words in context. It also refers to rules of professional or judicial ethics, such as the Code of Conduct for United States Judges, and to the rules of a church.
  • Canon law: the body of rules a church makes to govern its own organization, clergy, sacraments and members.

Why precise terms matter

Courts read legal terms closely. As a result, knowing the exact meaning of a word helps you follow orders, rules and filings. Each glossary entry on Lawtopolis is short on purpose and links to the pages where the term is used.

Sources

Sources last reviewed: 2026-10-24

Lawtopolis provides legal information and education, not legal advice. Using this site does not create an attorney-client relationship. Laws and court rules vary by jurisdiction and change over time; verify every authority against the official source and consult a licensed attorney in your jurisdiction about your situation.