'Heartache' definitions:

Definition of 'heartache'

From: WordNet
noun
Intense sorrow caused by loss of a loved one (especially by death) [syn: grief, heartache, heartbreak, brokenheartedness]

Definition of 'Heartache'

From: GCIDE
  • Heartache \Heart"ache`\ (-[=a]k`), n. [Cf. AS. heortece.] Sorrow; anguish of mind; mental pang. --Shak. [1913 Webster]

Synonyms of 'heartache'

From: Moby Thesaurus