(an instance of) an act of refusing
denial of responsibility; unwillingness
Cases of word usage
1) an obvious refusal to obey (defiance)
2) the failure or refusal to obey (disobedience)
3) not any; not a; used to express a strong feeling against, a refusal (no)
4) (an instance of) fighting; refusal to obey (rebellion)
5) an unkind refusal (of an offer of or request for help, friendship etc) (rebuff)