calumet vs pipe of peace

calumet and pipe of peace both are nouns.

Word	Noun	Adjective	Verb	Adverb
calumet	Yes	No	No	No
pipe of peace	Yes	No	No	No

As nouns, calumet and pipe of peace are synonyms defined as:

calumet and pipe of peace: a highly decorated ceremonial pipe of Amerindians; smoked on ceremonial occasions (especially as a token of peace)

Other synonyms of calumet include peace pipe.

calumet (noun)	pipe of peace (noun)
a highly decorated ceremonial pipe of Amerindians; smoked on ceremonial occasions (especially as a token of peace)	a highly decorated ceremonial pipe of Amerindians; smoked on ceremonial occasions (especially as a token of peace)