n a transient variation in voltage or current
n sports equipment consisting of a sharp point on the sole of a shoe worn by athletes
n fruiting spike of a cereal plant especially corn
n (botany) an indeterminate inflorescence bearing sessile flowers on an unbranched axis
n a sharp rise followed by a sharp decline
n a very high narrow heel on women's shoes
n each of the sharp points on the soles of athletic shoes to prevent slipping (or the shoes themselves)
n a sharp-pointed projection along the top of a fence or wall (or a dinosaur)
n a long, thin sharp-pointed implement (wood or metal)
n any holding device consisting of a rigid, sharp-pointed object
n a large stout nail
v stand in the way of
v pierce with a sharp stake or point
v secure with spikes
v bring forth a spike or spikes
v add alcohol to (beverages)
v manifest a sharp increase