Anatomy of a Knife
A  Point: The very end of the knife, which is used for piercing
B Tip: The first third of the blade (approximately), which is used for small or delicate work
C Edge: The cutting surface of the knife, which extends from the point to the heel. The edge may be beveled or symmetric.
D Heel: The rear part of the blade, used for cutting activities that require more force
E Spine: The top, thicker portion of the blade, which adds weight and strength
F Bolster: The thick metal portion joining the handle and the blade, which adds weight and balance and keeps the cook's hand from slipping
G Finger Guard: The portion of the bolster that keeps the cook's hand from slipping onto the blade
H Return: The point where the heel meets the bolster
J Tang: The portion of the metal blade that extends into the handle, giving the knife stability and extra weight
K Scales: The two portions of handle material (wood, plastic, composite, etc) that are attached to either side of the tang
L Rivets: The metal pins (usually 3) that hold the scales to the tang
M Handle Guard:  The lip below the butt of the handle, which gives the knife a better grip and prevents slipping
N Butt: The terminal end of the handle

*Image and text taken from http://en.wikipedia.org/wiki/Kitchen_knife