Nouns

(n)doctor, doc, physician, MD, Dr., medicoa licensed medical practitioner“I felt so bad I went to see my doctor”
(n)doctorchildren take the roles of physician or patient or nurse and pretend they are at the physician's office“the children explored each other's bodies by playing the game of doctor”
(n)doctor, Dr.a person who holds Ph.D. degree (or the equivalent) from an academic institution“she is a doctor of philosophy in physics”

Verbs

(v)sophisticate, doctor, doctor upalter and make impure, as with the intention to deceive“Sophisticate rose water with geraniol”
(v)doctorgive medical treatment to
(v)repair, mend, fix, bushel, doctor, furbish up, restore, touch onrestore by replacing a part or putting together what is torn or broken“She repaired her TV set”, “Repair my shoes please”