Dictionary definition · 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"spikes provide greater traction"
- 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"the seismograph showed a sharp spike in response to the temblor"
- a very high narrow heel on women's shoes
verb
- stand in the way of
- pierce with a sharp stake or point"impale a shrimp on a skewer"
- secure with spikes
- bring forth a spike or spikes"my hyacinths and orchids are spiking now"
- add alcohol to (beverages)"the punch is spiked!"
- manifest a sharp increase"the voltage spiked"
Source: Open English WordNet (CC BY 4.0).