<p><strong>Noun</strong></p><ul><li>the fluid that circulates in the principal vascular system of human beings and other vertebrates, in humans consisting of plasma in which the red blood cells, white blood cells, and platelets are suspended</li><li>the vital principle; life: The excitement had got into the very blood of the nation</li><li>a person or group regarded as a source of energy, vitality, or vigor: It's time we got some new blood in this company</li><li>one of the four elemental bodily humors of medieval physiology, regarded as causing cheerfulness</li><li>the shedding of blood; slaughter; murder: to avenge the blood of his father</li><li>the juice or sap of plants: the blood of the grape</li><li>temperament; disposition: a person of hot blood</li><li>physical nature of human beings: the frailty of our blood</li><li>Chiefly British: a high-spirited dandy; an adventuresome youth: the young bloods of Cambridge</li><li>a profligate or rake</li><li>physical and cultural extraction: It was a trait that seemed to be in their blood</li><li>royal extraction: a prince of the blood</li><li>descent from a common ancestor; ancestry; lineage: related by blood</li></ul><p><strong>Synonyms</strong></p><ul><li>stock</li><li>pedigree</li><li>parentage</li><li>genealogy</li><li>extraction</li><li>constitution</li><li>temper</li><li>spirit</li><li>personality</li><li>nature</li><li>mettle</li><li>makeup</li><li>grain</li><li>character</li><li>recorded and respected ancestry; purebred breeding</li></ul><p><strong>Slang</strong></p><ul><li>a Black person, especially a young Black man</li><li>brother (def 8)</li></ul><p><strong>Verb</strong></p><ul><li>(used with object) Hunting: to give (hounds) a first sight or taste of blood</li><li>to stain with blood</li></ul>