| 1. | Anatomy, Zoology. (in bipeds) the outer, front part of the thorax, or the front part of the body from the neck to the abdomen; chest. |
| 2. | Zoology. the corresponding part in quadrupeds. |
| 3. | either of the pair of mammae occurring on the chest in humans and having a discrete areola around the nipple, esp. the mammae of the female after puberty, which are enlarged and softened by hormonally influenced mammary-gland development and fat deposition and which secrete milk after the birth of a child: the breasts of males normally remain rudimentary. |
| 4. | the part of a garment that covers the chest. |
| 5. | the bosom conceived of as the center of emotion: What anger lay in his breast when he made that speech? |
| 6. | a projection from a wall, as part of a chimney. |
| 7. | any surface or part resembling or likened to the human breast. |
| 8. | Mining. the face or heading at which the work is going on. |
| 9. | Metallurgy.
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| 10. | Nautical.
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| 11. | to meet or oppose boldly; confront: As a controversial public figure he has breasted much hostile criticism. |
| 12. | to contend with or advance against: The ship breasted the turbulent seas. |
| 13. | to climb or climb over (a mountain, obstacle, etc.). |
| 14. | to overcome, succeed against. |
| 15. | to come alongside or abreast of. |
| 16. | breast in, Nautical. to bind (an object, as a boatswain's chair) securely under a projection, as the flare of a bow. |
| 17. | breast off, Nautical.
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| 18. | beat one's breast, to display one's grief, remorse, etc., in a loud and demonstrative manner. |
| 19. | make a clean breast of, to confess everything (of which one is guilty): You'll feel better if you make a clean breast of it. |

breast (brěst)
n.
Either of two milk-secreting, glandular organs on the chest of a woman; mammary gland; mamma.
A corresponding rudimentary gland in the male.
The superior ventral surface of the human body, extending from the neck to the abdomen.