Definition of proprietor
1
: one granted ownership of a colony (such as one of the original American colonies) and full prerogatives of establishing a government and distributing land
2a
: a person who has the legal right or exclusive title to something : owner
b
: one having an interest (such as control or present use) less than absolute and exclusive right
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Merriam-Webster unabridged
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Time Traveler for proprietor
The first known use of proprietor was in 1537
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