the United States federal department that promotes and administers domestic and foreign trade (including management of the census and the patent office); created in 1913
"The new secretary of Commerce announced plans to expand the international trade agreements."
A doctor.
"The physician prescribed doc instead of the other available antibiotics to treat his severe infection."
A document, especially (in professional jargon) a piece of technical documentation or legal evidence.
A documentary.
Initialism of drug of choice.
In plain English: It's the drug someone who uses drugs relies on most.
"He admitted his doc was alcohol after a particularly stressful day."
Usage: Doc (noun) refers to a person's preferred substance used to cope with withdrawal symptoms, often in the context of addiction treatment. Use it cautiously and only when discussing this specific clinical meaning; avoid using it as short for "doctor."
A nickname for a medical doctor, a person with an advanced educational degree, or a learned person.
"The new doc finished her residency and is now ready to treat patients in the clinic."
Doc is a shortened form of the word doctor that entered common usage as an informal address for physicians. It retains its original meaning while dropping the final syllables to create a quicker, friendlier term.