DOCTOR n.
a men so well versed in his department as to be qualified to teach it. Hence: One who has taken the highest degree conferred by a university or college, or has received a diploma of the highest degree; as, a doctor of divinity, of law, of medicine, of music, or of philosophy. Such diplomas may confer an honorary title…
DOOR n.
An entrance way, but taken in the sense of the house or apartment to which it leads. Martin's office is now the second door in the street. Arbuthnot. Blank door, Blind door, etc. (Arch.) See under Blank, Blind, etc. -- In doors, or Within doors, within the house. -- Next door to, near to; bordering on. A riot unpunis…
ENTERPRISE n.
That which is undertaken; something attempted to be performed; a work projected which involves activity, courage, energy, and the like; a bold, arduous, or hazardous attempt; an undertaking; as, a manly enterprise; a warlike enterprise. Shak. Their hands can not perform their enterprise. Job v. 12.