Here's an example:
* "The coffee shop"
In this example, "shop" is the companion noun to "coffee". It clarifies what kind of shop we're talking about. You could also say "the tea shop" or "the book shop", using "shop" as the companion noun.
Here are a few other examples:
* "The music festival" (festival is the companion noun, specifying the type of event)
* "The history book" (book is the companion noun, specifying the type of book)
* "The tennis court" (court is the companion noun, specifying the type of court)
Companion nouns often work in pairs, but they can also be used in longer phrases:
* "The brightly colored flowers" (brightly colored is the companion noun, specifying the type of flowers)
The key thing to remember about companion nouns is that they add meaning to the noun they accompany, helping to create a more specific and clear picture.