Top

1. To cover on the top; to tip; to cap; -- chiefly used in the past participle.
2. To rise above; to excel; to outgo; to surpass.
3. To rise to the top of; to go over the top of.
4. To take off the or upper part of; to crop.
5. To perform eminently, or better than before.
6. (Naut.) To raise one end of, as a yard, so that that end becomes higher than the other.
7. (Dyeing) To cover with another dye; as, to top aniline black with methyl violet to prevent greening and crocking.
8. To put a stiffening piece or back on (a saw blade).
9. To arrange, as fruit, with the best on top.
10. To strike the top of, as a wall, with the hind feet, in jumping, so as to gain new impetus; -- said of a horse.
11. To improve (domestic animals, esp. sheep) by crossing certain individuals or breeds with other superior.
12. (Naut.) To raise one end of, as a yard, so that that end becomes higher than the other.
13. To cut, break, or otherwise take off the top of (a steel ingot) to remove unsound metal.
14. (Golf) To strike (the ball) above the center; also, to make (as a stroke) by hitting the ball in this way.
To top off
1. to complete by putting on, or finishing, the top or uppermost part of; as, to top off a stack of hay; hence, to complete; to finish; to adorn.
2. to completely fill (an almost full tank) by adding more of the liquid it already contains.