a thin, pointed piece of metal, wood, or another rigid material

a sharp increase in the magnitude or concentration of something

the oil price spike

a hostel ward offering temporary accommodation for the homeless

he queued at the soup kitchen or the spike

impale on or pierce with a sharp point

she spiked another oyster

form into or cover with sharp points

his hair was matted and spiked with blood

add alcohol or a drug to contaminate (drink or food) surreptitiously

she bought me an orange juice and spiked it with vodka

(in volleyball) hit (the ball) forcefully from a position near the net so that it moves downward into the opposite court

a flower cluster formed of many flower heads attached directly to a long stem

this handsome plant has striking blue flowers in a spike on the stem

sage produces a profusion of purple flower spikes in late spring