lightening

American  

[lahyt-n-ing] / ˈlaɪt n ɪŋ /

noun

Medicine/Medical.

1. the descent of the uterus into the pelvic cavity, occurring toward the end of pregnancy, changing the contour of the abdomen and facilitating breathing by lessening pressure under the diaphragm.

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lightening British  

/ ˈlaɪtənɪŋ /

noun

1. obstetrics the sensation, experienced by many women late in pregnancy when the head of the fetus enters the pelvis, of a reduction in pressure on the diaphragm, making it easier to breathe

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Etymology

Origin of lightening

First recorded in 1520–30; lighten ² + -ing ¹

Compare meaning

How does lightening compare to similar and commonly confused words? Explore the most common comparisons:

• lightning vs. lightening

Example Sentences

The data, from the workforce analytics and productivity-tracking software company ActivTrak, found that AI is making workloads more intense, not lightening them.

From The Wall Street Journal • Mar. 18, 2026

“If you think you’ve weathered the storm, we’re probably not through it all. If you can’t handle it, consider lightening up your positions,” he added.

From MarketWatch • Feb. 5, 2026

He told family members that Diet Coke was responsible for his longevity, lightening the mood.

From The Wall Street Journal • Nov. 27, 2025

Firefighters faced difficult conditions Sunday as dry thunderstorms brought increased wind and threatened lightening strikes that could ignite new fires, according to the briefing.

From Los Angeles Times • Jul. 27, 2025

My hair was lightening in color, and my hands were callused and bleeding from handling fish with spiny fins and scales.

From "Flying Through Water" by Mamle Wolo

Related Words

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