axel — a jump in which the skater takes off from the forward outside edge of one skate, makes one and a half, two and a half, or three and a half turns in the air, and lands on the backward outside edge of the other skate
axle — An axle is a rod connecting a pair of wheels on a car or other vehicle.
axon — the long threadlike extension of a nerve cell that conducts nerve impulses from the cell body