English Reference

Word

spikes

US/ˈspaɪks/

UK/spˈaɪks/

Definitions

01sharp points

B1 · Intermediate Countable noun

n. long, thin, sharp objects or points.

n. thin, pointed objects or projections, often made of metal or wood.

“The top of the iron fence was covered in sharp spikes to keep people out.”

“The biologist noted that the desert plant had evolved long, needle-like spikes to protect its water-rich interior from local herbivores.”

02sudden increases

B2 · Upper Intermediate Countable noun

n. a sudden, large increase in something, like a price or a temperature.

n. a sharp, sudden increase in a value, quantity, or intensity, often represented as a peak on a graph.

“There was a sudden spike in electricity prices during the cold winter months.”

“The data revealed a significant spike in web traffic immediately following the celebrity's endorsement of the product on social media.”

Synonyms

Antonyms

03athletic shoes

B2 · Upper Intermediate Plural noun Sports

n. special shoes with metal points on the bottom used for running or sports.

n. athletic footwear equipped with pointed projections on the sole to provide traction on grass or tracks.

“The runner put on her spikes before stepping onto the track for the race.”

“The sprinter adjusted his spikes carefully, ensuring the metal pins were tight enough to provide maximum grip during the explosive start.”

Synonyms

04to increase sharply

B2 · Upper Intermediate

v. to rise very quickly to a high level.

v. to experience a sudden and significant increase in value, rate, or intensity.

“The temperature is expected to spike this afternoon, so stay in the shade.”

“Market analysts observed that oil prices tend to spike whenever geopolitical tensions rise in the producing regions.”

Synonyms

Antonyms

05to add something to a drink

B2 · Upper Intermediate Informal

v. to secretly add alcohol or a drug to someone's drink.

v. to add a strong or illicit substance, such as alcohol or a drug, to a drink without the consumer's knowledge.

“He didn't realize someone had spiked the fruit punch with vodka.”

“The safety campaign warned students to never leave their glasses unattended in case someone tried to spike their drinks.”

Synonyms

laceadulterate

Real-World Examples

“A simple change in the order you eat your food could help prevent blood sugar spikes.”
ScienceDaily 11 Oct 2026
“The report lists new technologies that researchers believe led to spikes in UAP reports in the 1950s and 60s.”
BBC 8 Mar 2024
“The Aiphanes eggersii is covered in large spikes.”
The Guardian 27 Aug 2026
“Akihiro Iwata found unglazed clay caltrops with spikes.”
CNN 23 Feb 2022

This entry

Exam level
CambridgeCambridgeCambridge English QualificationsThe exam suite from Cambridge University Press & Assessment, from A1 Movers up to C2 Proficiency. The benchmark names double as CEFR labels.B2 FirstIELTSIELTSInternational English Language Testing SystemThe 0–9 band test co-owned by the British Council, IDP, and Cambridge. Used for university entry, work, and migration.5.5–6.5TOEFL iBTTOEFL iBTTest of English as a Foreign Language, Internet-Based TestETS's academic English test, the standard route for US university admissions. Scored 0–120, with a 1–6 scale since 2026.1–6 scale: 4.0–4.572–94TOEICTOEICTest of English for International CommunicationETS's workplace English test, big in Japan and Korea. Listening & Reading scores 10–990 and tops out at C1.785–944
Frequency
Frequent
Level
B2 · Upper Intermediate
Updated

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English Reference