Definition of "heartbreak" []

• Overwhelming sorrow, grief, or disappointment. See Synonyms at regret. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "Alexa Ray Joel writes on her Facebook page that she was suffering from what she called heartbreak-related depression."
• "But great stamina heading up what we call heartbreak hill or cardiac hill right there at Piedmont Hospital."
• "BounceBack helps people find happiness after heartbreak from a relationship breakup or divorce."