1. Anguish of mind; sorrow.

Nuttall's Standard dictionary of the English language By Nuttall, P.Austin

• hearache,
• heartage,
• headhache,
• heartake,
• heartahce,
• heahache,
• heartack,
• heartace,
• headeache,
• heartached,
• heachache,
• heatache,
• heasdache,
• heasache,
• heartach,
• heartacke,
• hectache,
• heaache,
• hardache,
• hartache

• heritage,
• headache,
• heartseed,
• hearthstone,
• heartsick,
• heretical,
• heretic,
• hearts,
• heart cherry,
• heartsease,
• heart-shaped.

The adjective form of "heartache" is "heartbreaking".

The plural of the "heartache" can be the "heartaches".

The singular of the "heartache" can be the "heartache".