Decree n. : An order from one having authority, deciding what is to be done by a subordinate; also, a determination by one having power, deciding what is to be done or to take place; edict, law; authoritative ru// decision.

Decree n. : A decision, order, or sentence, given in a cause by a court of equity or admiralty.

Decree n. : A determination or judgment of an umpire on a case submitted to him.

Decree n. : An edict or law made by a council for regulating any business within their jurisdiction; as, the decrees of ecclesiastical councils.

Decree v. t. : To determine judicially by authority, or by decree; to constitute by edict; to appoint by decree or law; to determine; to order; to ordain; as, a court decrees a restoration of property.

Decree v. t. : To ordain by fate.

Decree v. i. : To make decrees; -- used absolutely.

Example:
Can taxes be amended if divorce Decree states to file jointly?

Taxonomy
decree, Constitution, laws, décrets, presidential decrees, free encyclopedia, the French, Conseil d'État, presidential decree, country, Executive decree authority, Prime Minister, regulations, statutes, proclamation, the Russian, Parliament, legislative acts.

Defination from the web:
decree is a rule of law issued by a head of state (such as the president of a republic), according to certain procedures (usually established in a constitution) ... Special orders known as décret-loi, literally "decree-Act", usually considered an illegal practice under the 3rd and ...