clank vs clangour

clank and clangour both are nouns.

Word	Noun	Adjective	Verb	Adverb
clank	Yes	No	Yes	No
clangour	Yes	No	Yes	No

As nouns, clank and clangour are synonyms defined as:

Other synonyms of clank include clang, clangor, clangoring, clash, crash.

clank (noun)	clangour (noun)
a loud resonant repeating noise	a loud resonant repeating noise

clank (verb)	clangour (verb)
make a clank	make a loud resonant noise