noun
Definition: A sharp, pointed object, often made of metal or wood, used for fastening or as a weapon. It can also refer to a sudden increase in something, like voltage or prices.
Example: The athlete wore special shoes with spikes to improve traction on the track.
transitive verb
Definition: To suddenly increase or add something, often in a sharp or noticeable way.
Example: The company decided to spike the prices of their products during the holiday season.