A friendly abbreviation of ‘doctor’, often used to a medical practitioner by someone who is not a patient. There are 89 examples of such usage, for instance, in Richard Gordon’s Doctor at Sea, where the speaker is usually another...

In computing, DOC or doc (an abbreviation of 'document') is a file extension for word processing documents; most commonly for Microsoft Word. Historically, the extension was used for documentation in plain-text format, particularly of programs or...