spike

/spaɪk/
noun
  1. A thin, pointed piece of metal, wood, or other material.
    • The fence had sharp iron spikes on top to keep people out.
    • The runner's shoes had metal spikes for better grip on the track.
    • She stepped on a rusty spike and had to get a tetanus shot.
  2. A sudden sharp increase in amount, level, or value.
    • The stock market saw a spike in prices after the good news.
    • Doctors noticed a spike in flu cases in early winter.
    • There was a spike in electricity usage during the heatwave.
  3. A sharp, pointed cluster of flowers on a stem, as in lavender or wheat.
    • Wheat spikes turn golden when they are ready to harvest.
    • Each spike on the grass held dozens of tiny seeds.
    • The lavender plant produced tall purple spikes in the garden.
  4. A sharp increase in voltage or electrical current.
    • A power spike damaged my computer's hard drive.
    • The lights flickered during a voltage spike in the storm.
    • Surge protectors help prevent damage from electrical spikes.
verb
  1. To increase sharply and quickly.
    • Temperatures spiked to over 100 degrees Fahrenheit yesterday.
    • Interest in the new video game spiked after the trailer was released.
    • Her heart rate spiked when she saw the bear on the trail.
  2. To add a sharp point or spikes to something.
    • The old fence was spiked with rusty nails.
    • They spiked the tops of the gates to prevent climbing.
    • The warrior's helmet was spiked for extra intimidation.
  3. To forcefully hit a volleyball downward into the opponent's court.
    • The player jumped high and spiked the ball straight down.
    • She spiked the ball over the net for the winning point.
    • He practiced spiking for hours to improve his volleyball game.
  4. To secretly add alcohol or a drug to a drink.
    • Never leave your drink unattended; someone might spike it.
    • The police arrested a man for spiking drinks at the bar.
    • Someone spiked her punch at the party, and she felt sick.
Antonyms
What does "spike" mean? | whatsthatwordmean | whatsthatwordmean