What is the meaning of 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.
  • usage: "spikes provide greater traction"
• Fruiting spike of a cereal plant especially corn.
  • synonyms: ear, capitulum
• Botany) an indeterminate inflorescence bearing sessile flowers on an unbranched axis. (
• A sharp rise followed by a sharp decline.
  • usage: "the seismograph showed a sharp spike in response to the temblor"
• A very high narrow heel on women's shoes.
  • synonyms: spike heel, stiletto heel
• Each of the sharp points on the soles of athletic shoes to prevent slipping (or the shoes themselves. )
  • usage: "the second baseman sharpened his spikes before every game"; "golfers' spikes damage the putting greens"
• A sharp-pointed projection along the top of a fence or wall (or a dinosaur. )
• A long, thin sharp-pointed implement (wood or metal. )
  • usage: "one of the spikes impaled him"
• Any holding device consisting of a rigid, sharp-pointed object.
  • usage: "the spike pierced the receipts and held them in order"
  • synonyms: spindle
• A large stout nail.
  • usage: "they used spikes to fasten the rails to a railroad tie"

verb

• Stand in the way of.
• Pierce with a sharp stake or point.
  • usage: "impale a shrimp on a skewer"
  • synonyms: transfix, impale, empale
• Secure with spikes.
• Bring forth a spike or spikes.
  • usage: "my hyacinths and orchids are spiking now"
  • synonyms: spike out
• Add alcohol to (beverages. )
  • usage: "the punch is spiked"
  • synonyms: lace, fortify
• Manifest a sharp increase.
  • usage: "the voltage spiked"