heart

[ hahrt ]

/ hɑrt /

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noun

Anatomy. a hollow, pumplike organ of blood circulation, composed mainly of rhythmically contractile smooth muscle, located in the chest between the lungs and slightly to the left and consisting of four chambers: a right atrium that receives blood returning from the body via the superior and inferior vena cavae, a right ventricle that pumps the blood through the pulmonary artery to the lungs for oxygenation, a left atrium that receives the oxygenated blood via the pulmonary veins and passes it through the mitral valve, and a left ventricle that pumps the oxygenated blood, via the aorta, throughout the body.

Zoology.

the homologous structure in other vertebrates, consisting of four chambers in mammals and birds and three chambers in reptiles and amphibians.
the analogous contractile structure in invertebrate animals, as the tubular heart of the spider and earthworm.

the center of the total personality, especially with reference to intuition, feeling, or emotion: In your heart you know I'm an honest man.

the center of emotion, especially as contrasted to the head as the center of the intellect: His head told him not to fall in love, but his heart had the final say.

capacity for sympathy; feeling; affection: His heart moved him to help people in need.

spirit, courage, or enthusiasm: His heart sank when he walked into the room and saw their gloomy faces.

the innermost or central part of anything: Notre Dame stands in the very heart of Paris.

the vital or essential part; core: the heart of the matter.

the breast or bosom: to clasp a person to one's heart.

a person (used especially in expressions of praise or affection): dear heart.

a conventional shape with rounded sides meeting in a point at the bottom and curving inward to a cusp at the top.

a red figure or pip of this shape on a playing card.

a card of the suit bearing such figures.

hearts,

(used with a singular or plural verb) the suit so marked: Hearts is trump. Hearts are trump.
(used with a singular verb) a game in which the players try to avoid taking tricks containing this suit.

Botany. the core of a tree; the solid central part without sap or albumen.

good condition for production, growth, etc., as of land or crops.

Also called core. Ropemaking. a strand running through the center of a rope, the other strands being laid around it.

verb (used with object)

Archaic.

to fix in the heart.
to encourage.

Informal. to like or enjoy very much; love: I heart Chicago.

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His boss, who he admires, is waiting to meet with him about the big project.

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Idioms about heart

after one's own heart, in keeping with one's taste or preference: There's a man after my own heart!

at heart, in reality; fundamentally: At heart she is a romantic.

break someone's heart, to cause someone great disappointment or sorrow, as to disappoint in love: The news that their son had been arrested broke their hearts.

by heart, by memory; word-for-word: They knew the song by heart.

cross one's heart, to maintain the truth of one's statement; affirm one's integrity: That's exactly what they told me, I cross my heart!

do someone's heart good, to give happiness or pleasure to; delight: It does my heart good to see you again.

eat one's heart out, to have jealousy, longing, or sorrow dominate one's emotions (often used in the imperative and with jocular reference to a famous potential rival): My baby is a genius—Einstein, eat your heart out! He’s eating his heart out over his defeat.

from the bottom of one's heart, with complete sincerity.Also from one's heart, from the heart .

have a heart, to be compassionate or merciful: Please have a heart and give her another chance.

have at heart, to have as an object, aim, or desire: to have another's best interests at heart.

have one's heart in one's mouth, to be very anxious or fearful: He wanted to do the courageous thing, but his heart was in his mouth.

have one's heart in the right place, to be fundamentally kind, generous, or well-intentioned: The old gentleman may have a stern manner, but his heart is in the right place.

heart and soul, enthusiastically; fervently; completely: They entered heart and soul into the spirit of the holiday.

in one's heart of hearts, in one's private thoughts or feelings; deep within one: He knew, in his heart of hearts, that the news would be bad. Also in one's heart .

lose one's heart to, to fall in love with: He lost his heart to the prima ballerina.

my heart is full. See entry at my heart is full.

near / dear / close to one's heart, of great interest or concern to one: It is a cause that is very near to his heart.

not have the heart, to lack the necessary courage or callousness to do something: No one had the heart to tell him he was through as an actor.

pour out one's heart, to reveal one's thoughts or private feelings:She poured out her heart to me. Also open one's heart .

set one's heart against, to be unalterably opposed to: She had set her heart against selling the statue. Also have one's heart set against .

set one's heart at rest, to dismiss one's anxieties: She couldn't set her heart at rest until she knew he had returned safely.

set one's heart on, to wish for intensely; determine on: She has set her heart on going to Europe after graduation. Also have one's heart set on .

take heart, to regain one's courage; become heartened: Her son's death was a great blow, but she eventually took heart, convinced that God had willed it.

take / lay to heart,

to think seriously about; concern oneself with: He took to heart his father's advice.
to be deeply affected by; grieve over: She was prone to take criticism too much to heart.

to one's heart's content, until one is satisfied; as much or as long as one wishes: The children played in the snow to their heart's content.

wear one's heart on one's sleeve,

to make one's intimate feelings or personal affairs known to all: She was not the kind who would wear her heart on her sleeve.
to be liable to fall in love; fall in love easily: How lovely to be young and wear our hearts on our sleeves!

with all one's heart,

with earnestness or zeal.
with willingness; cordially: She welcomed the visitors with all her heart.

Origin of heart

First recorded before 900; Middle English herte, Old English heorte; cognate with Dutch hart, German Herz, Old Norse hjarta, Gothic hairtō; akin to Latin cor (see cordial, courage), Greek kardía (see cardio-); def. 19 comes from the use of the stylized heart symbol to represent love

WORDS THAT MAY BE CONFUSED WITH heart

hart, heart

Words nearby heart

hearsay evidence, hearsay rule, hearse, Hearst, Hearst, William Randolph, heart, heartache, heart and soul, heart attack, heartbeat, heart block

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use heart in a sentence

Over time it was pretty clear what the Lord was doing in our hearts and now we’re sitting here today, starting a whole new chapter together.
WNBA Player Maya Moore Marries Jonathan Irons, The Man She Helped Free From Prison|Jasmine Grant|September 17, 2020|Essence.com
“To really get at the heart of this question, we need to go to Venus,” says Paul Byrne, a planetary scientist at North Carolina State University and a self-professed “Venus evangelical.”
We need to go to Venus as soon as possible|Neel Patel|September 16, 2020|MIT Technology Review
My heart would be beating faster and faster every time he gets the ball.
A Canadian Teenager Is One Of The Fastest Soccer Players In The World|Julian McKenzie|September 16, 2020|FiveThirtyEight
Its technology is at the heart of the more than 1 billion smartphones sold annually.
Nvidia is buying SoftBank’s Arm chip division in biggest semiconductor deal ever|Claire Zillman, reporter|September 14, 2020|Fortune

It will take more research to confirm the study’s findings and understand what they could mean for these young hearts.
College athletes show signs of possible heart injury after COVID-19|Aimee Cunningham|September 11, 2020|Science News
The questions going through my mind are: How on earth are there Kalashnikovs and rocket launchers in the heart of Paris?
Ayaan Hirsi Ali: Our Duty Is to Keep Charlie Hebdo Alive|Ayaan Hirsi Ali|January 8, 2015|DAILY BEAST
But at the heart of this “Truther” conspiracy theory is the idea that “someone” wants to destroy Bill Cosby.
Phylicia Rashad and the Cult of Cosby Truthers|Stereo Williams|January 8, 2015|DAILY BEAST
She fills her characters up—strong women beating back against a sexist system—with so much heart.
Oscars 2015: The Daily Beast’s Picks, From Scarlett Johansson to ‘Boyhood’|Marlow Stern|January 6, 2015|DAILY BEAST
One specific kind of emergency is at the heart of this, such as when an airplane suffers a loss of stability at night.
Flight 8501 Poses Question: Are Modern Jets Too Automated to Fly?|Clive Irving|January 4, 2015|DAILY BEAST
Acting legend talks about what role is closest to her heart.
Gena Rowlands on Her Favorite ‘Woman’|The Daily Beast Video|January 3, 2015|DAILY BEAST
The blood that accused his friend in his heart, rushed to his face, when he repeated what had been told him.
The Pastor's Fire-side Vol. 3 of 4|Jane Porter
After all, may not even John Burns be human; may not Mr. Chamberlain himself have a heart that can feel for another?
God and my Neighbour|Robert Blatchford
Turn away from sin and order thy hands aright, and cleanse thy heart from all offence.
The Bible, Douay-Rheims Version|Various
Her heart fluttered violently with fear as she saw that he stepped out after her, and walked by her side toward the house.
Checkmate|Joseph Sheridan Le Fanu
For of sadness cometh death, and it overwhelmeth the strength, and the sorrow of the heart boweth down the neck.
The Bible, Douay-Rheims Version|Various

British Dictionary definitions for heart

heart

/ (hɑːt) /

noun

the hollow muscular organ in vertebrates whose contractions propel the blood through the circulatory system. In mammals it consists of a right and left atrium and a right and left ventricleRelated adjective: cardiac

the corresponding organ or part in invertebrates

this organ considered as the seat of life and emotions, esp love

emotional mood or dispositiona happy heart; a change of heart

tenderness or pityyou have no heart

courage or spirit; bravery

the inmost or most central part of a thingthe heart of the city

the most important or vital partthe heart of the matter

(of vegetables such as cabbage) the inner compact part

the core of a tree

the part nearest the heart of a person; breastshe held him to her heart

a dearly loved person: usually used as a term of addressdearest heart

a conventionalized representation of the heart, having two rounded lobes at the top meeting in a point at the bottom

a red heart-shaped symbol on a playing card
a card with one or more of these symbols or (when pl.) the suit of cards so marked

a fertile condition in land, conducive to vigorous growth in crops or herbage (esp in the phrase in good heart)

after one's own heart appealing to one's own disposition, taste, or tendencies

at heart in reality or fundamentally

break one's heart or break someone's heart to grieve or cause to grieve very deeply, esp through love

by heart by committing to memory

cross my heart! or cross my heart and hope to die! I promise!

eat one's heart out to brood or pine with grief or longing

from one's heart or from the bottom of one's heart very sincerely or deeply

have a heart! be kind or merciful

have one's heart in it (usually used with a negative) to have enthusiasm for something

have one's heart in one's boots to be depressed or down-hearted

have one's heart in one's mouth or have one's heart in one's throat to be full of apprehension, excitement, or fear

have one's heart in the right place

to be kind, thoughtful, or generous
to mean well

have the heart (usually used with a negative) to have the necessary will, callousness, etc (to do something)I didn't have the heart to tell him

heart and soul absolutely; completely

heart of hearts the depths of one's conscience or emotions

heart of oak a brave person

in one's heart secretly; fundamentally

lose heart to become despondent or disillusioned (over something)

lose one's heart to to fall in love with

near to one's heart or close to one's heart cherished or important

set one's heart on to have as one's ambition to obtain; covet

take heart to become encouraged

take to heart to take seriously or be upset about

to one's heart's content as much as one wishes

wear one's heart on one's sleeve to show one's feelings openly

with all one's heart or with one's whole heart very willingly

verb

(intr) (of vegetables) to form a heart

an archaic word for hearten

Word Origin for heart

Old English heorte; related to Old Norse hjarta, Gothic hairtō, Old High German herza, Latin cor, Greek kardia, Old Irish cride

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

Scientific definitions for heart

heart

[ härt ]

The hollow, muscular organ that pumps blood through the body of a vertebrate animal by contracting and relaxing. In humans and other mammals, it has four chambers, consisting of two atria and two ventricles. The right side of the heart collects blood with low oxygen levels from the veins and pumps it to the lungs. The left side receives blood with high oxygen levels from the lungs and pumps it into the aorta, which carries it to the arteries of the body. The heart in other vertebrates functions similarly but often has fewer chambers.

A similar but simpler organ in invertebrate animals.

Cultural definitions for heart

heart

The hollow muscular organ that is the center of the circulatory system. The heart pumps blood throughout the intricate system of blood vessels in the body.

Other Idioms and Phrases with heart

heart

In addition to the idioms beginning with heart

heart and soul
heart goes out to, one's
heart in it, have one's
heart in one's mouth, have one's
heart in the right place, have one's
heart is set on
heart misses a beat, one's
heart not in it
heart of gold
heart of stone
heart of the matter
heart on one's sleeve
heart sinks, one's
heart stands still
heart to heart

also see:

absence makes the heart grow fonder
after one's own heart
at heart
break someone's heart
by heart
change of heart
cold hands, warm heart
cross my heart
cry one's eyes (heart) out
cut to the quick (heart)
do one (one's heart) good
eat one's heart out
find it in one's heart
from the bottom of one's heart
get to the heart of
give someone heart failure
half a heart
harden one's heart
have a heart
have no heart for
heavy heart
in one's heart of hearts
lose heart
lose one's heart to
near to one's heart
not have the heart to
open one's heart
pour out one's heart
set one's heart on
sick at heart
steal someone's heart
steel one's heart against
take heart
take to heart
to one's heart's content
warm heart
warm the cockles of one's heart
wear one's heart on one's sleeve
with all one's heart
young at heart

heart

Idioms about heart

Origin of heart

WORDS THAT MAY BE CONFUSED WITH heart

Words nearby heart

Words related to heart

How to use heart in a sentence

British Dictionary definitions for heart

Word Origin for heart

Scientific definitions for heart

Cultural definitions for heart

Other Idioms and Phrases with heart