Definition of coherence noun from the Oxford Advanced Learner's Dictionary

  

coherence

 noun
noun
BrE BrE//kəʊˈhɪərəns//
 
; NAmE NAmE//koʊˈhɪrəns//
 
[uncountable](formal)
 
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the situation in which all the parts of something fit together well The points you make are fine, but the whole essay lacks coherence. opposite incoherenceExtra examples They have struggled to create coherence within the group. Your essay lacks internal coherence. a lack of coherence between the policy and the speech theories which lack ideological coherence He managed to impose a new coherence on the machinery of the state. She was a writer who tried to create order and coherence. Some of the points you make are good, but the essay as a whole lacks coherence. The party tried to find some kind of ideological coherence.
See the Oxford Advanced American Dictionary entry: coherence