spike

What is the Definition of spike?

Noun:

1. a transient variation in voltage or current
2. sports equipment consisting of a sharp point on the sole of a shoe worn by athletes
3. fruiting spike of a cereal plant especially corn
4. (botany)
5. a sharp rise followed by a sharp decline
6. a very high narrow heel on women's shoes
7. each of the sharp points on the soles of athletic shoes to prevent slipping (or the shoes themselves)
8. a sharp-pointed projection along the top of a fence or wall (or a dinosaur)
9. a long, thin sharp-pointed implement (wood or metal)
10. any holding device consisting of a rigid, sharp-pointed object
11. a large stout nail

Verb:

1. stand in the way of
2. pierce with a sharp stake or point
3. secure with spikes
4. bring forth a spike or spikes
5. add alcohol to (beverages)
6. manifest a sharp increase

Other meanings of spike (synonyms, cognates).