cogency
n. (理論、議論等的)說服力,中肯切題
A cogent reason, argument, or example is strong and convincing.
There were perfectly cogent reasons why Julian Cavendish should be told of the Major's impending return.
要將少校即將返回的訊息告知朱利安·卡文迪什是有絕對充足的理由的。
1. persuasive relevance
2. the quality of being logically valid
The film makes its points with cogency and force.
影片強有力地闡明瞭主旨。