Chest/tʃest/ Definition 1 of 5Pro Tip 1/3Human Anatomy Often used when talking about health, breathing, or emotions. He held his breath, feeling his chest rise and fall. Pro Tip 2/3Physical Sensations Used to describe sensations like tightness, pain, or comfort. A tight chest may indicate stress or anxiety. Pro Tip 3/3Emotional Expressions Can symbolize pride, courage, or other strong feelings. She stood with her chest out, exuding confidence.