doctor of arts; doctor of dental medicine; doctor of dental surgery; doctor of divinity; doctor of education; doctor of fine arts; doctor of humane letters; doctor of humanities; doctor of laws; doctor of medicine; doctor of music; doctor of musical arts; doctor of optometry; doctor of osteopathy; doctor of philosophy; doctor of public health; doctor of sacred theology; doctor of science; doctor of the church; doctor of theology; doctor up; doctor-fish; doctor-patient relation;