noun

• (sports) An act of putting the ball or shuttlecock in play in various games.
  "Whose serve is it?"
• (chiefly Australia) A portion of food or drink, a serving.
  "The night before your event, base your evening meal on high-carbohydrate foods with a small serve of lean protein."
• (gay slang and African-American Vernacular) An impressive presentation (especially of a person's appearance).
  "That white eyeliner is such a serve."

verb

• (personal) To provide a service (or, by extension, a product, especially food or drink).
  "And yet this is not the office of a Priest, but of Him whom the Priest should serve."
• (personal) To provide a service (or, by extension, a product, especially food or drink).
  "And truly, Mrs. Abigal, I muſt needs ſay, I ſerv'd my Maſter contentedly, vvhile he vvas living; but I vvill ſerve no Man living (that is, no Man that is not living) vvithout double VVages."
• (personal) To provide a service (or, by extension, a product, especially food or drink).
  "That night Annie served him grilled halibut and English peas, plus tomatoes, of course, and a salad."
• (personal) To provide a service (or, by extension, a product, especially food or drink).
  "They also serve who only stand and wait."