blood 
/ˈblʌd/ noun
/ˈblʌd/ noun [noncount] 1 : the red liquid that flows through the bodies of people and animals
▪ The accident victim has already lost a lot of blood. ▪ the blood in your veins ▪ She donates/gives blood twice a year. [=twice a year she has blood taken out of her body so that it can be put into the body of a person who needs it] — see also bad blood, cold-blooded, full-blooded, hot-blooded, red-blooded, warm-blooded 2 — used to say that a person's ancestors were of a particular kind ▪ There's some Italian blood in her family. [=one or more of her family's ancestors was Italian] ▪ a man of royal blood [=a man with kings and queens in his family] — see also blue blood, blue-blooded 3 : members of a team, company, or organization — usually used in the phrases new blood or young blood ▪ Our company could benefit from some new blood. [=new employees] ▪ We've just added some young blood to the team.
▪ The accident victim has already lost a lot of blood. ▪ the blood in your veins ▪ She donates/gives blood twice a year. [=twice a year she has blood taken out of her body so that it can be put into the body of a person who needs it] — see also bad blood, cold-blooded, full-blooded, hot-blooded, red-blooded, warm-blooded
blood and guts — see 1gut
blood is thicker than water
◊The saying blood is thicker than water means that a person's family is more important than a person's other relationships or needs.
blood is up
◊In British English, when you say that someone's blood is up, you mean that someone is angry and wants to fight or argue.
▪ It's best to avoid her when her blood is up.
▪ It's best to avoid her when her blood is up.
blood on your hands
◊If someone's blood is on your hands, you are responsible for that person's death.
▪ Her blood is on your hands!
▪ Her blood is on your hands!
by blood
: by a relationship that connects two people through their natural parents, grandparents, etc.
▪ My aunt and I are related by blood. [=my aunt is the sister of one of my parents] ▪ My aunt and I are not related by blood. [=my aunt is/was married to the brother of one of my parents]
▪ My aunt and I are related by blood. [=my aunt is the sister of one of my parents] ▪ My aunt and I are not related by blood. [=my aunt is/was married to the brother of one of my parents]
draw blood 1 : to take blood from a person's body for medical reasons
▪ We need to draw some blood to test you for the virus. 2 : to cause blood to flow from a person's body
▪ The punch to the nose drew blood. [=caused the nose to bleed] — sometimes used figuratively ▪ Some politicians view debates as chances to draw blood from their opponents.
▪ We need to draw some blood to test you for the virus.
▪ The punch to the nose drew blood. [=caused the nose to bleed] — sometimes used figuratively ▪ Some politicians view debates as chances to draw blood from their opponents.
flesh and blood — see 1flesh
in cold blood
: in a deliberate way : following a plan
▪ They were killed in cold blood by terrorists.
▪ They were killed in cold blood by terrorists.
in your blood
◊If something (such as an ability or activity) is in your blood, it is part of your nature and is often shared by your family members.
▪ With two parents who are painters, art is in her blood.
▪ With two parents who are painters, art is in her blood.
make someone's blood boil
: to make someone very angry
▪ His hate-filled speeches make my blood boil! [=make me see red]
▪ His hate-filled speeches make my blood boil! [=make me see red]
make someone's blood curdle or make someone's blood run cold
: to cause someone to be very afraid or disgusted
▪ The horrible news made our blood run cold. ▪ a ghost story that will make your blood curdle ▪ The mere sight of a cockroach makes my blood curdle.
▪ The horrible news made our blood run cold. ▪ a ghost story that will make your blood curdle ▪ The mere sight of a cockroach makes my blood curdle.
out for blood
◊If you are out for blood or out for someone's blood, you are very angry and you want to kill someone or to cause someone pain or discomfort.
▪ Those soldiers were out for blood. ▪ His ex-wife is out for his blood.
▪ Those soldiers were out for blood. ▪ His ex-wife is out for his blood.
spill/shed blood
: to kill people violently
▪ The blood of too many young people has been spilled/shed.
▪ The blood of too many young people has been spilled/shed.
sweat blood
informal : to care a lot about something and work very hard for it
▪ basketball players who sweat blood for their teams
▪ basketball players who sweat blood for their teams
taste blood
informal : to experience pleasure as a result of defeating an opponent
▪ She has tasted blood now, and can't wait to meet her rival on the court again.
▪ She has tasted blood now, and can't wait to meet her rival on the court again.
