Predicative expression

A predicative expression is something that helps us say something about someone or something else. For example, if we say "The flower is red," the word "red" is a predicative expression because it describes the flower and tells us that it is a certain color.

Another example could be "The cat is playful." Here, the word "playful" is a predicative expression because it describes the cat and tells us something about its personality.

In shorter words, it's a way of describing something so we know more about it!