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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.


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

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of lightening

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

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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.

See Examples For:

Another reason such layoffs may prove to be temporary: In many cases AI seems to shift the burden of work to those who are most skilled at using it, rather than lightening the load overall.

From The Wall Street Journal Jun. 21, 2026

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

"Information like that is a bolt of lightening to us," he tells me.

From BBC Jun. 26, 2025

Pyp hopped off his horse and looked at the lightening sky with disgust.

From "A Game of Thrones" by George R.R. Martin

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