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is heating
  • present progressive of heat (3rd person singular).

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.

Musk: Here’s a look at how the space race is heating up between two of the world’s richest men after Amazon bought a satellite operator this week.

From The Wall Street Journal • Apr. 19, 2026

Climate change is heating the ocean from the surface downward, which increases the difference in density between surface water and deeper layers.

From Science Daily • Apr. 16, 2026

But with the success of Artemis II, the race to return to the Moon is heating up once again.

From BBC • Apr. 11, 2026

The competition is heating up, especially in the United States.

From Los Angeles Times • Apr. 3, 2026

“Plums, the operation is heating up in Baltimore,” she wrote, quickly dipping her pen into the blue-black ink, and I wondered who Plums was.

From "The Detective's Assistant" by Kate Hannigan