heartstring
/ˈhɑrtˌstrɪŋ/
noun
- A single emotional bond or feeling of deep affection, often used in the plural form 'heartstrings'.
- The old photograph pulled at a heartstring he thought had long been forgotten.
- The movie's final scene struck a heartstring that left the audience in tears.
- Every time she hears that lullaby, it tugs at a heartstring connected to her grandmother.