Although languages should be precise and clear, the reality is that it is not necessary to speak concisely and precisely in some conditions when we communicate with others. Sometimes if we use direct sentences to express our points of view, we are likely to hurt other people. While an adequate expression in fuzzy words is a good way for us to use which can bring us a harmonious circumstances and good relationship. This article tries to reveal the fact that people use and need fuzzy expressions in their communication indeed though it is not well recognized, it also analyzes the concrete fuzzy art in people's linguistic communication through the functions fuzzy words act.
