Synonym: affection, center, core, courage, enthusiasm, hub, kindness, love, meat, middle, nucleus, soul, spirit, stamina, substance, sympathy, temperament, valentine, warmth. Similar words: at heart, by heart, heart and soul, hear, hear of, earth, hear from, near to. Meaning: [hɑrt /hɑːt] 
n. 1. the locus of feelings and intuitions 2. the hollow muscular organ located behind the sternum and between the lungs; its rhythmic contractions move the blood through the body 3. the courage to carry on 4. an area that is approximately central within some larger region 5. the choicest or most essential or most vital part of some idea or experience 6. an inclination or tendency of a certain kind 7. a plane figure with rounded sides curving inward at the top and intersecting at the bottom; conventionally used on playing cards and valentines 8. a firm rather dry variety meat (usually beef or veal) 9. a positive feeling of liking 10. a playing card in the major suit that has one or more red hearts on it.
n. 1. the locus of feelings and intuitions 2. the hollow muscular organ located behind the sternum and between the lungs; its rhythmic contractions move the blood through the body 3. the courage to carry on 4. an area that is approximately central within some larger region 5. the choicest or most essential or most vital part of some idea or experience 6. an inclination or tendency of a certain kind 7. a plane figure with rounded sides curving inward at the top and intersecting at the bottom; conventionally used on playing cards and valentines 8. a firm rather dry variety meat (usually beef or veal) 9. a positive feeling of liking 10. a playing card in the major suit that has one or more red hearts on it. 
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121) Catch one's heart,never be apart.
122) I don't like to steal away your heart.
123) I love you heart and soul.
124) The Japanese invaders lost heart and slowly edged off.
125) It makes my heart ache to see her suffer.
126) She suffered from a weak heart.
127) Tears are words the heart can't say.
128) She was born with a weak heart.
129) He was recovering from a heart transplant operation.
130) Heart disease is America's number one killer.
131) My heart felt congratulations on your coming happy union!
132) Her heart jolted when she saw him.
133) You should learn these words by heart.
134) No one can replace you in my heart.
135) The patient had/underwent surgery on his heart.
136) Those who loved, heart, and how it slowly fade.
137) If I were in your heart.
138) Your own taste, let my heart closely rely on.
139) Don't ever underestimate the heart of a champion.
140) Touch the soul of the heart not sacrifice.
141) Her heart was pounding in her chest.
142) Tears are the words which the heart can't say.
143) The heart and lungs will be transplanted in tandem.
144) This medicine acts on the heart.
145) Love sees no color, age, or looks, it only sees what in your heart.
146) The fall in the number of deaths from heart disease is generally attributed to improvements in diet.Sentencedict.com
147) Sometimes silence is not happy, just want to put the heart headroom.
148) Heart gets cold and love gets tired,it's inevitable when you experience love.
149) Do you know there is someone thinking of you and caring you all the time ? Your smiling eyes are just like the sparkling stars hanging on the curtain of my heart.
150) The function of the veins is to carry blood to the heart.
More similar words: at heart, by heart, heart and soul, hear, hear of, earth, hear from, near to, on earth, give ear to, headquarters, earthquake, year after year, head, heal, cheat, wheat, cheap, health, head on, head for, head up, theater, southeast, heavily, go ahead, get ahead, forehead, in the air, ahead of.