What is the meaning of Doctor?

A physician; a member of the medical profession; one who is trained and licensed to heal the sick or injured. The final examination and qualification may award a doctor degree in which case the post-nominal letters are D.O., DPM, M.D., DMD, DDS, in the US or MBBS in the UK.

A person who has attained a doctorate, such as a Ph.D. or Th.D. or one of many other terminal degrees conferred by a college or university.

A veterinarian; a medical practitioner who treats non-human animals.

A nickname for a person who has special knowledge or talents to manipulate or arrange transactions.

A teacher; one skilled in a profession or a branch of knowledge; a learned man.

Any mechanical contrivance intended to remedy a difficulty or serve some purpose in an exigency.

A fish, the friar skate.

A ship's cook.

To act as a medical doctor to.

To act as a medical doctor.

To make (someone) into an (academic) doctor; to confer a doctorate upon.

To physically alter (medically or surgically) a living being in order to change growth or behavior.

To genetically alter an extant species.

To alter or make obscure, as with the intention to deceive, especially a document.

To adulterate, drug, or poison (drink).

To take medicine.

Alternative form of doutor

doctor

doctor (person who has attained a doctorate)

teacher, instructor

catechist, Doctor of the Church

doctor

doctor (Ph.D.)

physician

Source: wiktionary.org