Breast

1. n. The power of singing; a musical voice; — so called, probably, from the connection of the voice with the lungs, which lie within the breast.
2. n. The fore part of the body, between the neck and the belly; the chest; as, the breast of a man or of a horse.
3. n. Either one of the protuberant glands, situated on the front of the chest or thorax in the female of man and of some other mammalia, in which milk is secreted for the nourishment of the young; a mamma; a teat.
4. n. Anything resembling the human breast, or bosom; the front or forward part of anything; as, a chimney breast; a plow breast; the breast of a hill.
5. n. The face of a coal working.
6. n. The front of a furnace.
7. n. The seat of consciousness; the repository of thought and self-consciousness, or of secrets; the seat of the affections and passions; the heart.

The word meanings were obtained from OPTED(The Online Plain Text English Dictionary), which is based on “The Project Gutenberg Etext of Webster’s Unabridged Dictionary” which is in turn based on the 1913 US Webster’s Unabridged Dictionary (See Project Gutenburg), as a text file.