left
1 Americanadjective
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being, relating to, or located on or nearest to the side where a person’s heart normally is (opposed to right).
Dan was ahead of me and on the left side of the street.
I have arthritis in my left knee.
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Often Left of or belonging to the political Left; having liberal or radical views in politics.
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Mathematics. pertaining to an element of a set that has a given property when written on the left of an element or set of elements of the set.
a left identity, as 1 in 1 ⋅ x = x.
noun
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the left side or something that is on the left side; the direction toward that side.
The laundry room is the first door on your left.
Move the picture about a foot to the left so it’s centered above the sofa.
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a turn toward the left.
Make a left at the next corner.
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none the left or the Left
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the complex of individuals or organized groups advocating liberal reform or revolutionary change in the social, political, or economic order.
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the position held by these people.
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Government. Usually Left
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the part of a legislative assembly, especially in continental Europe, that is situated on the left side of the presiding officer and that is customarily assigned to members of the legislature who hold more radical and socialistic views than the rest of the members.
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the members of such an assembly who sit on the left.
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Boxing. a blow delivered by the left hand.
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Baseball. left field.
adverb
verb
idioms
adjective
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(usually prenominal) of or designating the side of something or someone that faces west when the front is turned towards the north
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(usually prenominal) worn on a left hand, foot, etc
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(sometimes capital) of or relating to the political or intellectual left
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(sometimes capital) radical or progressive, esp as compared to less radical or progressive groups, persons, etc
adverb
noun
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a left side, direction, position, area, or part
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(often capital) the supporters or advocates of varying degrees of social, political, or economic change, reform, or revolution designed to promote the greater freedom, power, welfare, or comfort of the common people
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radical in the methods, principles, etc, employed in striving to achieve such change
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boxing
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a blow with the left hand
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the left hand
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verb
Etymology
Origin of left
First recorded in 1125–75; 1935–40 left 1 for def. 6; Middle English left, lift, luft, Old English left “idle, weak, useless,” Kentish form of lyft- (in lyftādl “palsy”); cognate with Dutch, Low German lucht; akin to Middle English libbe (modern dialect lib ) “to castrate,” cognate with Dutch, Low German lubben
Explanation
If you are holding a compass and facing north, the direction to the west of you is also to your left. Left is the opposite of "right." People who are left-handed write with their left hands. and when you take a left turn on your bike, you should signal by holding your left arm straight out to the left. When left is an adjective, it has a completely different meaning: something that's left on the table, or remaining there, will probably be thrown away by your waiter. The Old English root is luft-, "weak," as most right-handed folks are weaker on their left sides.
Vocabulary lists containing left
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.
We’re thinking of images for the last 10 minutes that we know are going to be what the audience is left with, and that’s really, really thrilling for us as writers.
From Los Angeles Times • Jun. 15, 2026
He left $113 million of salary on the table—specifically so that Rose could assemble a better roster around him.
From The Wall Street Journal • Jun. 15, 2026
The emphasis on intervention has left a huge gap in prevention, one that organizations across the country are trying to fill.
From Slate • Jun. 15, 2026
That fight was deemed a no contest because of repeated eye pokes from Gane which left Aspinall unable to continue, and he called for a rematch in October.
From BBC • Jun. 15, 2026
The life-size plaster model of Phineas's head made by Dr. Bigelow stands on the left corner of the table.
From "Phineas Gage" by John Fleischman
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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.