vi to grow or become pure or clear.
2. purify ·vt to free from ceremonial or legal defilement.
3. purify ·vt to free from improprieties or barbarisms; as, to purify a language.
4. purify ·vt hence, in figurative uses: (a) to free from guilt or moral defilement; as, to purify the heart.
5. purify ·vt to make pure or clear from material defilement, admixture, or imperfection; to free from extraneous or noxious matter; as, to purify liquors or metals; to purify the blood; to purify the air.