/hɑrt/ ●●● noun 1BODY [countable] science, biology the body part inside a person’s or animal’s chest that pumps blood through the body: He could feel his heart beating faster. Dad’s had some heart trouble this year.2EMOTIONS [countable, uncountable] the part of you that is able to feel strong emotions such as love: I knew in my heart that I wouldn’t see her again. I loved her with all my heart.3SHAPE [countable] a shape used for representing love4the heart of something a)the main or most important part of something: We talked for hours before we got to the heart of the problem/matter. b)[singular] the middle or the busiest part of an area: The hotel is in the heart of the city.5a something at heart if you are a particular type of person at heart, that is the type of person you really are: Bob can seem tough, but he’s really a sweet guy at heart.6know/learn/recite etc. something by heart to correctly remember or say all of something that you have been taught, without needing to read it7GAME [countable usually plural] a playing card with one or more red heart shapes on it8somebody’s heart sank used in order to say that someone suddenly became very sad or disappointed: Nick’s heart sank when he heard the news.9do something to your heart’s content to do something as much as you want to: You can go sailing to your heart’s content at the resort.10-hearted having a particular type of character: a kind-hearted old lady11have a heart of gold to be very generous and kind12take/lose heart to begin to have more hope, or to stop having hope[Origin: Old English heorte] → cross my heart (and hope to die) at cross1COLLOCATIONSverbssomebody’s heart beats I could feel my daughter’s heart beating as I hugged her.somebody’s heart pounds/thuds/thumps (=it beats very strongly) Joey’s heart was pounding in fear.somebody’s heart races (=it beats very fast) Her heart began to race at the thought of seeing him again.heart + nounsheart trouble/problems Smoking can cause heart trouble as well as lung disease.a heart condition (=something wrong with your heart) The baby was born with a heart condition.a heart murmur (=an unusual sound when your heart beats, heard by a doctor) The doctor listened to her chest and said she might have a heart murmur.somebody’s heart rate (=the number of times someone’s heart beats per minute) The exercise machine will measure your heart rate.adjectiveshealthy heart The exercises can help you have a healthy heart and have fun, too.a bad/weak heart (=an unhealthy heart) He has a weak heart, so too much physical effort is dangerous for him.