Canadian explorer (born in England) who explored the Mackenzie River and who was first to cross North America by land north of Mexico (1764-1820)
"Sir Alexander Mackenzie became famous as a Canadian explorer after leading the first journey across North America by land north of Mexico."
a Canadian river; flows into the Beaufort Sea
"The Mackenzie River is Canada's longest waterway, flowing north to empty into the Beaufort Sea."
A surname, from Scottish Gaelic of Scottish origin.
"MacKenzie is a common Scottish surname derived from the Gaelic phrase mac Ailín."
The name Mackenzie is a spelling pronunciation of the Scots form MacKenzie, where an old letter was mistaken for a z. It ultimately derives from Scottish Gaelic, meaning "son of Coinneach."