first minister

noun3

1. •
   The principal minister of a ruler or state.

   • The king, knowing that he had an alternative administration in waiting, accepted the first minister's wish. — 2016
2. •
   (Canada) The prime minister or a provincial or territorial premier.
3. •
   (UK) A leader of a devolved government such as Scotland, Wales, or Northern Ireland.

   • Yousaf is almost certain to be confirmed as Scotland’s next first minister in a nominal vote at Holyrood on Tuesday but now has to bridge those divides by bringing the SNP’s warring wings together. — 2023