doc.

/D AA1 K/
noun
  1. 1

    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.

    If you still feel unwell tomorrow, see your doctor.

  2. 2

    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.

  3. 3

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

  4. 4

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

  5. 5

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

  6. 6

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

    the doctor of a calico-printing machine, which is a knife to remove superfluous colouring matter

  7. 7

    A fish, the friar skate.

noun
  1. 1

    An original or official paper used as the basis, proof, or support of anything else, including any writing, book, or other instrument conveying information pertinent to such proof or support.

  2. 2

    Any material substance on which the information is represented by writing.

  3. 3

    A file that contains text.

  4. 4

    That which is taught or authoritatively set forth; precept; instruction; dogma.

  5. 5

    An example for instruction or warning.

Source: https://en.wiktionary.org/wiki/doc., https://en.wiktionary.org/wiki/doctor, https://en.wiktionary.org/wiki/document