n (anatomy) Either of the two organs on the front of a female human's chest, which contain the mammary glands; also the analogous organs in males.
n (anatomy) The chest, or front of the human thorax.
n A section of clothing covering the breast area.
n The figurative seat of the emotions, feelings etc.; one's heart or innermost thoughts.
n The ventral portion of an animal's thorax.
n A choice cut of poultry, especially chicken or turkey, taken from the bird’s breast; also a cut of meat from other animals, breast of mutton, veal, pork.
n The front or forward part of anything.
n (mining) The face of a coal working.
n (mining) The front of a furnace.
n (obsolete) The power of singing; a musical voice.
n (swimming) The breaststroke.
v (transitive, often figurative) To push against with the breast; to meet full on, oppose, face.
v To reach the top (of a hill).
v (transitive, cooking) To debreast.