(1):
(n.) A three-square float (file) used by comb makers.
(2):
(n.) A top hat.
(3):
(n.) Tobacco left in the bottom of a pipe bowl; - so called from its being often taken out and placed on top of the newly filled bowl. Also, a cigar stump.
(4):
(n.) One that tops, in any sense of the verb;
(5):
(n.) One that excels, surpasses, or is extraordinary of its kind.
(6):
(n.) A cover of a top layer or part.
(7):
(n.) Any device for cutting off tops; as, a turnip topper.
(8):
(n.) One who tops steel ingots.