Heart is a muscular organ in humans and other animals, which pumps blood through the blood vessels of the circulatory system.
The word "heart" also has many figurative meanings:
1. The center of a person's thoughts and emotions
2. Courage or enthusiasm
3. The central or most important part of something
4. A conventional representation of a heart with two equal curves meeting at a point at the bottom
5. A playing card of the suit hearts (♥)