spikes

To pierce, fasten, or secure something using a sharp point.

"He spiked the ball over the net."

To increase suddenly and sharply in amount or intensity.

"The temperature spiked unexpectedly."

Sharp, pointed pieces of metal or hard material, often for gripping or defence.

"The athlete wore shoes with spikes."

A sudden, sharp increase in amount, level, or intensity.

"There was a spike in electricity usage."