How are compound words defined?

Compound words are defined as two or more words that are combined to create a new word with a distinct meaning. This definition captures the essence of what makes a compound word. Examples include "toothbrush" (tooth + brush) and "basketball" (basket + ball), where the individual words contribute to the meaning of the new word. Understanding compound words is crucial for recognizing how language evolves and how meanings can shift when words are combined. This feature of language enhances vocabulary and allows for more nuanced expression.