high commissioner

WordReference Random House Unabridged Dictionary of American English © 2026

high′ commis′sioner, 

1. Government a representative of one sovereign member of the Commonwealth of Nations in the country of another, having a rank and responsibilities generally similar to those of an ambassador.
2. Government the chief of a special international commission or other organization.
3. Government the head of government in a mandate, protectorate, possession, or the like.
• 1880–85

Collins Concise English Dictionary © HarperCollins Publishers::

high commissioner noun

1. the senior diplomatic representative sent by one Commonwealth country to another instead of an ambassador