heart·break 
/ˈhɑɚtˌbreɪk/ noun
plural heart·breaks /ˈhɑɚtˌbreɪk/ noun : a very strong feeling of sadness, disappointment, etc. [count] ▪ He recently suffered a string of romantic heartbreaks. [noncount] ▪ She's had more than her share of heartbreak. [=her heart has been broken many times]
