spike
nounUK /spaɪk/
US /spaɪk/
A spike is a sharp point that sticks up.
Be careful not to step on the spike.
OTHER MEANINGS
2. A sudden sharp increase.
There was a spike in the price of eggs.
3. To hit a ball sharply downward.
She spiked the ball over the net.
4. A long metal nail used to hold rails in place.
The workers hammered a spike into the track.