Sentence:  Adjectives <WSD>modify</WSD> nouns. [https://books.google.com/books?id=vs25DQAAQBAJ&pg=PA192&dq=nouns+modify&hl=en&sa=X&ved=0ahUKEwiG5bzgqLLiAhUBbKwKHSa0DLYQ6AEIRjAF#v=onepage&q=nouns%20modify&f=false The New Harbrace Guide: Genres for Composing] 
Meaning of the word marked with <WSD> tags:  To qualify the meaning of.