As nouns the difference between plants and mills
is that plants is plural of lang=en while mills is plural of lang=en.
As verbs the difference between plants and mills
is that plants is third-person singular of plant while mills is third person singular present tense of the verb to mill
As a proper noun Mills is
{{surname|A=An|English and Scottish|from=Middle English}}, variant of Mill or Miles.
plants
English
Noun
(head)
Verb
(head)
(plant)
mills
English
Proper noun
(
en proper noun)
, variant of Mill or Miles.
, from the Gaelic Mhuilinn (of the mill).