spike - noun

a transient variation in voltage or current

sports equipment consisting of a sharp point on the sole of a shoe worn by athletes

fruiting spike of a cereal plant especially corn

(botany) an indeterminate inflorescence bearing sessile flowers on an unbranched axis

a sharp rise followed by a sharp decline

a very high narrow heel on women's shoes

each of the sharp points on the soles of athletic shoes to prevent slipping (or the shoes themselves)

a sharp-pointed projection along the top of a fence or wall (or a dinosaur)

a long, thin sharp-pointed implement (wood or metal)

any holding device consisting of a rigid, sharp-pointed object

a large stout nail

spike - verb

• stand in the way of
• pierce with a sharp stake or point
• secure with spikes
• bring forth a spike or spikes
• add alcohol to (beverages)
• manifest a sharp increase

spike - thesaurus

capitulum   ear   empale   fortify   impale   lace   spindle   transfix