1. (conj.) Unless.

2. (a.) Smaller; not so large or great; not so much; shorter; inferior; as, a less quantity or number; a horse of less size or value; in less time than before.

3. (adv.) Not so much; in a smaller or lower degree; as, less bright or loud; less beautiful.

4. (n.) A smaller portion or quantity.

5. (n.) The inferior, younger, or smaller.

6. (v. t.) To make less; to lessen.

7. (n.) A privative adjective suffix, denoting without, destitute of, not having; as witless, childless, fatherless.