What is Coherence? Coherence in writing refers to the logical and rational organization of ideas , making the overall message clear, understandable, and easy for the reader to follow. Clear definition and examples of Coherence . This article will show you the importance of Coherence . Coherence describes the way an argument (or part of an argument) “hangs together.” It’s an extremely important quality of formal writing. Define coherence . coherence synonyms, coherence pronunciation, coherence translation, English dictionary definition of coherence . n. 1. The quality or state of cohering, especially a logical, orderly, and aesthetically consistent relationship of parts. 2. Physics The property of being... "Coherence" refers to the quality of being logical, consistent, and easily understood , whether in writing, speech, or reasoning. It is often used to describe how well the parts of something, like a text or argument, fit together in a unified and meaningful way.