IPA: /juˈkeɪs/
KK: /juˈkeɪs/
An official order or decree that has the power of law, often issued by a ruler or government.
The czar issued a ukase that changed the laws of the land.
Ukase originates from Russian 'ukaz' (meaning decree or order). It refers to an authoritative order or proclamation, especially one issued by a government or ruler.
Think of a formal 'decree' ('ukaz') issued by an authority, which helps you remember that 'ukase' means an authoritative order.