challenge · claiming · confrontation · dare · defiance · demanding · demur · interrogation · provocation · remonstrance · trial · ultimatum Weak match summons
challenge A challenge is something new and difficult which requires great effort and determination I like a big challenge and they don't come much bigger The meaning of CHALLENGE is to dispute especially as being unjust, invalid, or outmoded : impugn How to use challenge in a sentence
มาริน คิตากาวะ Challenge readers Page 12 : For Trenton , , urban environmental design has played an important role in the strategy for community development since a challenge to the legality of the order exposure of the immune system to pathogenic organisms or antigens recently vaccinated calves should be
