CLANGOUR
clang, clangor, clangour, clangoring, clank, clash, crash
(noun) a loud resonant repeating noise; “he could hear the clang of distant bells”
clangor, clangour
(verb) make a loud resonant noise; “the alarm clangored throughout the building”
Source: WordNet® 3.1
Noun
clangour (countable and uncountable, plural clangours)
(British, Canadian) A loud, repeating clanging sound; a loud racket; a din.
Verb
clangour (third-person singular simple present clangours, present participle clangouring, simple past and past participle clangoured)
(British, Canadian) To make a clanging sound.
Source: Wiktionary