To increase in quantity or bulk by adding a cheaper substance:
To extend (business activities) into disparate fields.
To apply to some specialty or limited object; to assign to a specific use; as, specialized knowledge.
To decrease is defined as to make something smaller or fewer or to become smaller or fewer.
To decrease or limit in width
Increase is defined as to become bigger or greater.
To increase in amount or degree; intensify:
Find another word for broadens. In this page you can discover 10 synonyms, antonyms, idiomatic expressions, and related words for broadens, like: extends, widens, diversifies, expands, specializes, restricts, decreases, narrows, increases and grows.