heatwave

/ˈhiːtweɪv/
nounIntermediate
informal

a prolonged period of excessively hot weather, typically lasting several days or weeks

The heatwave caused power outages as air conditioners strained the grid.

The extreme heat led to electricity shortages because cooling systems overloaded the power supply.

Authorities issued warnings to stay hydrated during the heatwave.

Officials advised people to drink plenty of water to avoid heat-related illnesses.

💡

Heatwaves are often associated with health risks, water shortages, and infrastructure strain.

Collocations

severe heatwavean extreme and dangerous period of high temperaturesprolonged heatwavea heatwave lasting an extended perioddeadly heatwavea heatwave causing fatalities due to extreme heat

Synonyms

Antonyms

Related Phrases

heat domephrase
a weather phenomenon where high pressure traps hot air
heat indexphrase
a measure of how hot it feels considering humidity

💡Pro Tip

Climate Context

Heatwaves are becoming more frequent and intense due to climate change.

Gold Rule

Avoid Misuse

Do not use 'heatwave' for brief temperature increases or localized hot spots.

📖Word Origin

From 'heat' (high temperature) + 'wave' (suggesting a prolonged event), first recorded in the late 19th century.

📝Usage Notes

The term is commonly used in weather forecasts and climate discussions. Avoid using it for short-term temperature spikes.

Word Breakdown

heat
high temperature
root
+
wave
a prolonged event or occurrence
root
English Dictionary