calamus vs calamus

calamus and calamus both are nouns.

Word	Noun	Adjective	Verb	Adverb
calamus	Yes	No	No	No
calamus	Yes	No	No	No

calamus (noun)	calamus (noun)
the hollow spine of a feather	the hollow spine of a feather
any tropical Asian palm of the genus Calamus; light tough stems are a source of rattan canes	any tropical Asian palm of the genus Calamus; light tough stems are a source of rattan canes
perennial marsh plant having swordlike leaves and aromatic roots	perennial marsh plant having swordlike leaves and aromatic roots
the aromatic root of the sweet flag used medicinally	the aromatic root of the sweet flag used medicinally