English dictionary definition of:

top

a canvas tent to house the audience at a circus performance
a garment (especially for women) that extends from the shoulders to the waist or hips
covering for a hole (especially a hole in the top of a container)
a conical child's plaything tapering to a steel point on which it can be made to spin
platform surrounding the head of a lower mast
the greatest possible intensity
the top or extreme point of something (usually a mountain or hill)
the highest or uppermost side of anything
the upper part of anything
the highest level or degree attainable; the highest stage of development
the first half of an inning; while the visiting team is at bat

finish up or conclude
be the culminating event
cut the top off
strike (the top part of a ball in golf, baseball, or pool) giving it a forward spin
reach or ascend the top of
pass by, over, or under without making contact
provide with a top or finish the top (of a structure)
be superior or better than some standard
be ahead of others; be the first
be at the top of or constitute the top or highest point