Cách sử dụng
The word 'obsolete' means something that is no longer useful, popular, or valuable because it has been replaced by something newer or better. It is often used to describe old technology or outdated ideas. For example, cassette tapes and VHS are obsolete because most people now use digital devices to listen to music or watch movies. The word can be used in different contexts such as when talking about computers, phones, cars or even when discussing the evolution of social norms.