Definitions of top:

• noun:   a garment (especially for women) that extends from the shoulders to the waist or hips

  Example: "He stared as she buttoned her top"

• noun:   covering for a hole (especially a hole in the top of a container)

  Example: "He removed the top of the carton"

• noun:   a conical child's plaything tapering to a steel point on which it can be made to spin

  Example: "He got a bright red top and string for his birthday"

• noun:   platform surrounding the head of a lower mast
• noun:   the greatest possible intensity

  Example: "He screamed at the top of his lungs"

• noun:   the highest or uppermost side of anything

  Example: "Put your books on top of the desk"

• noun:   the upper part of anything

  Example: "The mower cuts off the tops of the grass"

• noun:   the first half of an inning; while the visiting team is at bat

  Example: "A relief pitcher took over in the top of the fifth"

• noun:   a canvas tent to house the audience at a circus performance

  Example: "They had the big top up in less than an hour"

• noun:   the top point of a mountain or hill
• noun:   the highest level or degree attainable

  Example: "At the top of his profession"

• verb:   provide with a top

  Example: "The towers were topped with conical roofs"

• verb:   be at the top of or constitute the top or highest point

  Example: "A star tops the Christmas Tree"

• verb:   finish up or conclude

  Example: "They topped off their dinner with a cognac"

• verb:   cut the top off

  Example: "Top trees and bushes"

• verb:   strike (the top part of a ball in golf, baseball, or pool) giving it a forward spin
• verb:   reach or ascend the top of

  Example: "The hikers topped the mountain just before noon"

• verb:   pass by, over, or under without making contact

  Example: "The balloon cleared the tree tops"

• verb:   be ahead of others; be the first

  Example: "She topped her class every year"

• verb:   be the culminating event
• verb:   go beyond

  Example: "She topped her performance of last year"

• adjective:   not to be surpassed

  Example: "His top effort"

• name:  A surname (very rare: popularity rank in the U.S.: #45117)