swearverb/ˈʒu.ɾɐ/mediumju·raPortuguesEnglishEspanolFrancaisDefinitionTo make a solemn promise or declaration.He swears to tell the truth.She swore she didn't lie.synpromiseaffirmCommon collocationsswear allegianceswear in the name ofEtymologyDo latim 'jurare'Related wordsjuramentojurídico