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Synonyms

heat up

Idioms  
  1. Become acute or intense, as in If inflation heats up, the interest rate will surely rise, or The debate over the budget was heating up. [Early 1200s]


Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

As for the mission, the Orion spacecraft carrying the four astronauts will hit the Earth’s atmosphere at about 24,000 miles an hour External link and heat up to roughly 5,000 degrees Fahrenheit External link.

From Barron's • Apr. 10, 2026

When talks around this topic began to heat up last year, experts told MarketWatch that shifting responsibility for the program to another agency wouldn’t do much to solve its fundamental challenges.

From MarketWatch • Mar. 19, 2026

“Preserved berries. Fermented ingredients. You heat up your house with a burning stove, and at the same time you put root vegetables or a meat pot inside. You share the warmth in that way.”

From Salon • Mar. 8, 2026

The price of coal used in power generation is starting to heat up again, as conflict in the Middle East fans concerns about global energy security.

From The Wall Street Journal • Mar. 4, 2026

Emily felt her face heat up, but James waved her off.

From "Book Scavenger" by Jennifer Chambliss Bertman