casus belli
nounNAmE//ˌkɑsəs ˈbɛli//, NAmE//ˌkeɪsəs ˈbɛlaɪ//
(pl. casus belli) (formal)Want to learn more?
Find out which words work together and produce more natural sounding English with the Oxford Collocations Dictionary app.
Check pronunciation: casus belli