fall in
Britishverb
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to collapse; no longer act as a support
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to adopt a military formation, esp as a soldier taking his place in a line
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(of a lease) to expire
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(of land) to come into the owner's possession on the expiry of the lease
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(often foll by with)
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to meet and join
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to agree with or support a person, suggestion, etc
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to make a mistake or come to grief
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to become pregnant
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Take one's place in formation or in the ranks, as in The sergeant ordered the troops to fall in . A related expression is fall into , as in They all fell into their places . [Early 1600s] Also see fall into .
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Sink inward, cave in, as in The snow was so heavy that we feared the roof would fall in . [Early 1700s] Also see under drop in ; the subsequent idioms beginning with fall in ; fall into .
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.
Sierra Canyon will play its first girls’ flag football game this fall in the fourth year of the CIF-sanctioned sport.
From Los Angeles Times • Jun. 28, 2026
On Thursday in the US, Apple shares dropped by 6% - its biggest one-day fall in more than a year.
From BBC • Jun. 26, 2026
Friday’s share bump isn’t enough to offset a sharp fall in the stock earlier this month.
From The Wall Street Journal • Jun. 26, 2026
But did the Lakers fall in love with his legend and ignore his frailties?
From Los Angeles Times • Jun. 24, 2026
Dido, she thought, could be trusted to make unaided the necessary impression upon Aeneas, but she was not at all certain that Aeneas by himself could get Dido to fall in love with him.
From "Mythology: Timeless Tales of Gods and Heroes" by Edith Hamilton
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Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.