plural spikes
1
: a very large nail
2
a
: one of a row of pointed irons placed (as on the top of a wall) to prevent passage
b(1)
: one of several metal projections set in the sole and heel of a shoe to improve traction
(2)
spikes plural
: a pair of shoes having spikes attached to the soles or soles and heels
They met when after a round of golf he came into the restaurant at which she worked—still wearing his golf spikes.—
John Strege
John Strege
c
3
: something resembling a spike: such as
a
: a young mackerel not over six inches (15.2 centimeters) long
b
: an unbranched antler of a young deer
c
: spike protein
Without its spikes, the pathogen can't get into human cells.—Katherine J. Wu
Katherine J. Wu4
5
: the act or an instance of spiking (as in volleyball)
6
a
: a pointed element in a graph or tracing
b
: an unusually high and sharply defined maximum (as of amplitude in a wave train)
7
slang
: hypodermic needle
8
: a momentary sharp increase and fall in electric potential
also
: action potential
9
: an abrupt sharp increase (as in prices or rates)
a spike in unemployment
a spike in the number of infections
spiked; spiking
1
: to fasten or furnish with spikes
2
a
: to disable (a muzzle-loading cannon) temporarily by driving a spike into the vent
b
: to suppress or block completely
spiked the rumor
3
a
: to pierce or impale with or on a spike
b
: to reject (a story) for publication or broadcast for editorial reasons
4
a
: to add an alcoholic beverage to (a drink)
spiked the punch
b
: to add a foreign substance to
spike the coffee with tranquilizers
c
: to add something highly reactive (such as a radioactive tracer) to
d
: to add vitality, zest, or spice to : liven
spiked the speech with humor
spike the broth with peppers
5
: to drive (something, such as a volleyball) sharply downward with a hard blow
also
: to throw down sharply
spiked the ball in the end zone
6
: to undergo a sudden sharp increase in (temperature or fever)
the patient spiked a fever of 103°
: to increase sharply
battery sales spiked after the storm
spiker
noun
1
: an ear of grain
2
: an elongated inflorescence similar to a raceme but having the flowers sessile on the main axis see inflorescence illustration
Synonyms
Examples of spike in a Sentence
Verb
Someone spiked the punch at the party.
The medication caused his blood pressure to spike.
She spiked the ball and scored the winning point.
After he scored a touchdown he spiked the ball in the end zone.
Recent Examples on the Web
Matthew Crowley, Louis Jacobson, Austin American-Statesman, 21 Nov. 2024
What's happening: The Trevor Project, an organization that serves LGBTQ+ young people, reported the largest spike in daily contact volume to its crisis services post-election.
—Avery Lotz, Axios, 20 Nov. 2024
Andrew Torgan, CNN, 5 Nov. 2024
Research published in 2019 showed that levels of DMT in rat brains spike during cardiac arrest, lending some substance to a link between DMT and near-death experiences.
—Oshan Jarow, Vox, 4 Nov. 2024
See all Example Sentences for spike 
Examples are automatically compiled from online sources to
show current usage.
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Noun
An ideologically diverse cross-section of economists agrees that the American Rescue Plan added a couple of percentage points to inflation, but didn’t cause the wider spike.
—Matthew Crowley, Louis Jacobson, Austin American-Statesman, 21 Nov. 2024
What's happening: The Trevor Project, an organization that serves LGBTQ+ young people, reported the largest spike in daily contact volume to its crisis services post-election.
—Avery Lotz, Axios, 20 Nov. 2024
Verb
Jason Kelce turns around, grabs someone’s cellphone, and spikes it to the ground.
—Andrew Torgan, CNN, 5 Nov. 2024
Research published in 2019 showed that levels of DMT in rat brains spike during cardiac arrest, lending some substance to a link between DMT and near-death experiences.
—Oshan Jarow, Vox, 4 Nov. 2024
See all Example Sentences for spike
Articles Related to spike
Dictionary Entries Near spike
Cite this Entry
“Spike.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/spike. Accessed 26 Nov. 2024.
Copy CitationKids Definition
spike
1 of 3 noun1
: a very large nail
2
a
: one of the metal objects set in the sole and heel of a shoe (as a baseball shoe) to prevent slipping
b
plural
: a pair of shoes having spikes
3
: an unbranched antler of a young deer
4
: the act or an instance of spiking (as in volleyball)
5
: a pointed element (as in a graph)
spike
2 of 3 verb
spiked; spiking
1
: to fasten or furnish with spikes
2
: to pierce or cut with or on a spike
3
: to add alcoholic liquor to a drink
4
: to drive (as a volleyball) sharply downward
5
: to increase sharply
battery sales spiked after the storm
spike
3 of 3 noun1
: an ear of grain
2
: a long usually rather narrow cluster of flowers in which the blossoms grow close to the central stem
Etymology
Noun
Middle English spike "a large nail"; probably of Scandinavian origin
Noun
Middle English spik "a head of a stalk of grain, ear," from Latin spica (same meaning)
Medical Definition
spike
1 of 2 noun
: a change (as in voltage) involving a sharp increase and fall or a recording of this: as
a
: the pointed element in the wave tracing in an electroencephalogram
b
: a sharp increase in body temperature followed by a rapid fall
a fever with spikes to 103°
c(1)
: the sharp increase and fall in the recorded action potential of a stimulated nerve cell that during the increasing phase corresponds to an inrush of sodium ions to the interior of the cell and during the decreasing phase corresponds to a slowing of the influx of sodium ions and to an increasing efflux of potassium ions to the exterior
(2)
spike
2 of 2 transitive verb
spiked; spiking
: to undergo a sudden sharp increase in (temperature or fever) usually up to an indicated level
infected patients spiked fevers as high as 105°F
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