【Thinking】 about complementary set of word

 In thinking about nuance of a sentence, I noticed that I can't determine the nuance of sentences only from meaning of the words simply.

 The relationship between words only means logical structure. And in most cases, I can't find the nuance of the sentence only from logical structure. After I thought about this fact, I notice that a word not only means the meaning of the words its simply showing but also carries the nuance of that it doesn't have meaning of something what it's not meaning.
 So, in other word, controlling the complementary set of words is needed for us to control nuance of sentence. 

 And then, the next question is this: What defines the complementary set of the word?
 I haven't found an answer for this question. Maybe it is affected by background of the word, in other word, by the system (architecture?) that includes and defines the word.

 There is more question: If we can define the complementary set of the word, can we define it of the syntax?
 This is too difficult for me to think. But we know about expression that feels us polite or rigid or so. Rather, in general, the nuance of sentence is recognized to be caused by syntax. I'll think it another time.

But ordinary people know this characteristic about language and use it naturally. And I know the fact that my peculiarity of using language causes this problem and question. What I can do is only doing what I can.

注）練習がてら英語で書いています。誤りを見つけられた方はそっと教えてもらえるとhappyです。