plantation owner vs planter

plantation owner and planter both are nouns.

Word	Noun	Adjective	Verb	Adverb
plantation owner	Yes	No	No	No
planter	Yes	No	No	No

As nouns, plantation owner and planter are synonyms defined as:

plantation owner (noun)	planter (noun)
the owner or manager of a plantation	a decorative pot for house plants
	the owner or manager of a plantation
	a worker who puts or sets seeds or seedlings into the ground