spike

a very high narrow heel on women's shoes

a sharp rise followed by a sharp decline

“the seismograph showed a sharp spike in response to the temblor”

a transient variation in voltage or current

an indeterminate inflorescence bearing sessile flowers on an unbranched axis

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

“the second baseman sharpened his spikes before every game”

manifest a sharp increase

“the voltage spiked”

secure with spikes

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

“spikes provide greater traction”

stand in the way of

add alcohol to (beverages)

“the punch is spiked!”

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

“the spike pierced the receipts and held them in order”