[pyoo
r-uh-fahy] 
verb, -fied, -fy⋅ing.| 1. | to make pure; free from anything that debases, pollutes, adulterates, or contaminates: to purify metals. |
| 2. | to free from foreign, extraneous, or objectionable elements: to purify a language. |
| 3. | to free from guilt or evil. |
| 4. | to clear or purge (usually fol. by of or from). |
| 5. | to make clean for ceremonial or ritual use. |
| 6. | to become pure. |