A more thorough explanation:

Definition: Sterling is an adjective that describes something that is of high quality or conforms to a standard of national value, especially in relation to English money or metal. It can also refer to something that is valuable or authoritative, such as a report.

• A pound sterling is the official currency of the United Kingdom.
• The silverware was made of sterling silver, which is a high-quality metal.
• The company's sterling reputation for customer service helped it attract new clients.

These examples illustrate how the term "sterling" can be used to describe something that is of high quality or value. In the first example, "pound sterling" refers to the official currency of the United Kingdom, which is considered to be a reliable and stable form of money. In the second example, "sterling silver" is a type of metal that is known for its durability and beauty. In the third example, "sterling reputation" refers to a company's positive image and track record, which can be a valuable asset in attracting new customers.