conflict/ 'kɔnflɪkt /

1.noun [u] 
(disagreement,fighting) 冲突

2.noun [of interests] [ loyalties etc] 
(difference) 矛盾

3.vi.[opinions] [ research etc+] 
to conflict with sth 与某事截然不同

to be in conflict (with sb)
(与某人)发生冲突