doctor

B1 · Intermediate Countable noun

n. a person who has the highest level of degree from a university, like a PhD.

n. a person who has been awarded a doctorate, the highest academic degree conferred by a university.

日本語:博士※

“She is a doctor of history and teaches at the local university.”

“After five years of rigorous research and a successful thesis defense, he was finally entitled to call himself a doctor of philosophy.”

C1 · Advanced Informal

v. to add something, like a drug or a strong chemical, to food or drink without someone knowing.

v. to adulterate or contaminate food or drink by adding a foreign substance, often a drug.

“He realized his coffee had been doctored when he started feeling very sleepy.”

“The athlete claimed that a rival had doctored his water bottle with a prohibited substance to trigger a positive drug test.”

C2 · Proficiency Countable noun nautical Archaic · Slang

n. an old name for a cook on a ship.

n. a traditional nautical nickname for a ship's cook.

“In the old story, the sailors complained to the doctor about the salty soup.”

“Life aboard a nineteenth-century merchant vessel was harsh, and the men often directed their frustrations toward the doctor when rations grew thin.”