Third-person singular simple present indicative form of purify.(verb)
Wiktionary.org : Text is available under the Creative Commons Attribution-ShareAlike License
Use "purifies" in a sentence
"Marketed as a "healthy smoking machine," this 3-in-1 gadget lights up your cigarettes then automatically "purifies" all the nasty smoke around you, all the while spraying the air with your favorite perfume."
"Zakat, or charitable giving, "purifies" wealth by setting aside a portion for those in need."
"But the gun shoots death, and purifies the earth of the filth of brutals."