Definition of top
b (1)
:the highest or uppermost region or part
(2)
:the upper end, edge, or surface
2
:a fitted, integral, or attached part or unit serving as an upper piece, lid, or covering
3 a (1)
:the highest position (as in rank or achievement)
(2)
:a person or thing at the top
b
tops plural
:aces and kings in a hand or the three highest honors in a suit
4 a
:the part that is nearest in space or time to the source or beginning
b
:the first half of an inning in baseball
b
:the loudest or highest range of a sound
7 a
:a platform surrounding the head of a lower mast that serves to spread the topmast rigging, strengthen the mast, and furnish a standing place for men aloft
b
:a comparable part of the superstructure;
especially
:such a part on a warship used as a fire-control station or antiaircraft gun platform
8
:a forward spin given to a ball (as in golf or billiards) by striking it on or near the top or above the center;
also
:the stroke so given
9
:a fundamental quark that has an electric charge of + 2/3 and a measured energy of approximately 175 GeV;
also
:the flavor characterizing this particle
—
off the top of one's head
:in an impromptu manner
- sat down and wrote the … story off the top of his head
- —Jerome Beatty, Jr.
—
on top of
1 a
:in control of
- acted like a man on top of his job
- —Newsweek
b
:informed about
- tried to keep on top of new developments
2
:in sudden and unexpected proximity to
- the deadline was on top of them
3
:in addition to
—
on top of the world
:in a position of eminent success, happiness, or fame
—
over the top
:beyond the bounds of what is expected, usual, normal, or appropriate
