Quantcast
Merriam-Webster Logo
  • Dictionary
  • Thesaurus
  • Medical
  • Scrabble
  • Spanish Central
  • Learner's Dictionary
1

heart

play
noun \ˈhärt\

Simple Definition of heart

  • : the organ in your chest that pumps blood through your veins and arteries

  • : the front part of your chest

  • : the heart thought of as the place where emotions are felt

Full Definition of heart

  1. 1 a :  a hollow muscular organ of vertebrate animals that by its rhythmic contraction acts as a force pump maintaining the circulation of the blood b :  a structure in an invertebrate animal functionally analogous to the vertebrate heart c :  breast, bosom d :  something resembling a heart in shape; specifically :  a stylized representation of a heart

  2. 2 a :  a playing card marked with a stylized figure of a red heart b plural :  the suit comprising cards marked with hearts c plural but sing or plural in constr :  a game in which the object is to avoid taking tricks containing hearts

  3. 3 a :  personality, disposition <a cold heart> b obsolete :  intellect

  4. 4 :  the emotional or moral as distinguished from the intellectual nature: as a :  generous disposition :  compassion <a leader with heart> b :  love, affection <won her heart> c :  courage, ardor <never lost heart>

  5. 5 :  one's innermost character, feelings, or inclinations <knew it in his heart> <a man after my own heart>

  6. 6 a :  the central or innermost part :  center b :  the essential or most vital part of something c :  the younger central compact part of a leafy rosette (as a head of lettuce)

at heart
  1. :  in essence :  basically, essentially

by heart
  1. :  by rote or from memory

to heart
  1. :  with deep concern

Examples of heart

  1. I could feel my heart pounding.

  2. He has a bad heart.

  3. He put his hand on his heart.

  4. When she heard the news, her heart filled with joy.

  5. She just couldn't find it in her heart to forgive them.

  6. I felt in my heart that our relationship was never meant to be.

  7. a ruler without a heart

  8. Have a heart! Can't you see he needs help?



Illustration of heart

Origin of heart

Middle English hert, from Old English heorte; akin to Old High German herza heart, Latin cord-, cor, Greek kardia


First Known Use: before 12th century

Rhymes with heart


2

heart

verb

Definition of heart

  1. transitive verb
  2. 1 archaic :  hearten

  3. 2 archaic :  to fix in the heart



Before 12th Century

First Known Use of heart

before 12th century


Medical Dictionary

heart

play
noun \ˈhärt\

Medical Definition of heart

  1. 1:  a hollow muscular organ of vertebrate animals that by its rhythmic contraction acts as a force pump maintaining the circulation of the blood and that in the human adult is about five inches (13 centimeters) long and three and one half inches (9 centimeters) broad, is of conical form, is placed obliquely in the chest with the broad end upward and to the right and the apex opposite the interval between the cartilages of the fifth and sixth ribs on the left side, is enclosed in a serous pericardium, and consists as in other mammals and in birds of four chambers divided into an upper pair of rather thin-walled atria which receive blood from the veins and a lower pair of thick-walled ventricles into which the blood is forced and which in turn pump it into the arteries

  2. 2:  a structure in an invertebrate animal functionally analogous to the vertebrate heart



Illustration of heart




Seen and Heard

What made you want to look up heart? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

February 6, 2016

an official order, decree, or edict

Get Word of the Day daily email!

WORD GAMES

Take a 3-minute break and test your skills!

image1037863653

Which of the following refers to thin, bending ice, or to the act of running over such ice?

duvet pince-nez spindrift kittly-benders
Name That Thing

10 quick questions: hear them, spell them, and see how your skills compare to the crowd.

TAKE THE QUIZ
SCRABBLE® Sprint

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ