(informal) A person with no friends of the opposite sex who is looking for a spouse or companion

plural of lonely-heart

Of a newspaper column: in which people attempt to find friends of the opposite sex.

plural of heart of gold

Alternative spelling of heartfelt

(idiomatic) A heart (or by extension, person) in a very fragile romantic state, one that is easily made broken-hearted.

People's private feelings and emotions, now especially those of a local population towards an invading or occupying military force.

(palmistry) A line on the palm of the hand from below the index finger to below the pinky, supposed to indicate, by its form or position, one's love life.

(anatomy) Any of the valves in the heart which prevent blood from moving in the wrong direction.

(idiomatic, chiefly imperative) To be kind or sympathetic; to treat others kindly.