kos vs coss

kos and coss both are nouns.

Word	Noun	Adjective	Verb	Adverb
kos	Yes	No	No	No
coss	Yes	No	No	No

As nouns, kos and coss are synonyms defined as:

kos and coss: (in India) a unit of length having different values in different localities

kos (noun)	coss (noun)
(in India) a unit of length having different values in different localities	(in India) a unit of length having different values in different localities