Cách sử dụng
The word 'pith' is used to refer to the spongy tissue found in the center of some plant stems. It is also used in other contexts to mean the most important, essential, or relevant part of something. For example, you might say that a speech had a lot of pith if it contained a lot of meaningful and relevant information without any unnecessary fluff. In general, it is a word that is used in more formal or academic contexts and may not be used often in everyday conversation.