Free dictionary online: English, Spanish, French, Italian, Chinese, German, Russian translations, definitions, synonyms...
Google Widget
Other Dictionary Collaborative dictionary
cogent  
A cogent reason, argument, or example is strong and convincing. 
FORMAL  adj  (=convincing) 
There were perfectly cogent reasons why Julian Cavendish should be told of the Major's impending return.  
 cogency  n-uncount 
The film makes its points with cogency and force.