I
n.
device that spins
1) to spin a top
misc.
2) to sleep like a top ('to sleep soundly')
II
n.
highest point
1) to reach the top
2) a mountain top; rooftop
3) from; to (the) top (from top to bottom; we climbed to the top)
4) at the top
cover, cap
5) to put on, screw on a top
6) to screw off, unscrew a top
7) a bottle; box; screw top
misc.
8) to blow one's top ('to explode in anger'); to go over the top ('to begin a charge by going over a parapet'); ('to exceed a limit'); to be on top of a situation ('to be in control of a situation')