meat carved from the breast of a fowl
"The chef grilled two slices of buttery chicken breast for our dinner."
the part of an animal's body that corresponds to a person's chest
"The farmer checked the cow's udder and noticed it was dry after the calf refused to nurse."
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.
"The doctor gently examined her breast to check for any lumps after she noticed some discomfort during her menstrual cycle."
In plain English: A breast is the soft part of a person's chest where they feel their heartbeat.
"The baby latched onto her breast to feed."
Usage: Use "breast" to refer specifically to the mammary glands located on the front of a person's chest, noting that while they are most prominent in females, males also possess these organs. Avoid confusing this physical body part with the upper section of poultry or fish when referring to food sources.
To push against with the breast; to meet full on, oppose, face.
"The young bull charged directly at us and stood his ground, bracing himself to breast the storm that was closing in."
In plain English: To breast means to push against something with your chest.
"The bird breasted into the wind to fight the storm."
Usage: Use "breast" as a verb when describing an action where someone or something pushes forward directly against a current, obstacle, or wind with determination. This usage implies moving headlong into difficulty rather than simply walking past it.
The word "breast" comes from Old English brēost, which traces back to a Proto-Indo-European root meaning "to swell." This original sense of swelling likely refers to the physical shape of the body part.