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Klein

American  
[klahyn] / klaɪn /

noun

  1. Felix 1849–1925, German mathematician.

  2. Melanie, 1882–1960, British psychoanalyst, specialist in treatment of children, born in Austria.


Klein British  
/ klaɪn /

noun

  1. Calvin ( Richard ). born 1942, US fashion designer

  2. Melanie. 1882–1960, Austrian psychoanalyst resident in England (from 1926), noted for her work on child behaviour

"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

Example Sentences

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Gary Klein breaks down what went wrong for the Rams in a 30-26 loss to the Denver Broncos on Sunday night.

From Los Angeles Times ● Sep. 29, 2026

A Klein bottle can be thought of as another unusual connected surface.

From Science Daily ● Sep. 28, 2026

"Language shapes how we see ourselves," says Shari Klein, one of the founders of the Schaamteloos campaign, which targets words that use "schaam" or "shame".

From BBC ● Sep. 23, 2026

Klein and others pointed to a longstanding history of Jews creating new institutions—law firms, universities or hospitals—in response to being shut out of existing ones.

From The Wall Street Journal ● Sep. 10, 2026

Klein studied nurses, intensive care units, firefighters, and other people who make decisions under pressure, and one of his conclusions is that when experts make decisions, they don’t logically and systematically compare all available options.

From "Blink" by Malcolm Gladwell

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