English Reference

Word

blood

Phoneticsblood

US/ˈbɫəd/

UK/blˈʌd/

Definitions

01body fluid

A2 · Elementary Uncountable noun Medicine

n. the red liquid that flows through your heart and body.

n. the red liquid that circulates in the arteries and veins of humans and other vertebrate animals, carrying oxygen and nutrients.

“He cut his finger on the sharp glass and a little blood came out.”

“The doctor ordered a full panel of tests to check the patient's blood for signs of infection or vitamin deficiencies.”

02family and ancestry

B2 · Upper Intermediate Uncountable noun

n. your family background or the people you are related to by birth.

n. lineage, ancestry, or family relationship; often used to distinguish biological relatives from those related by marriage.

“They are related by blood, so they look very similar to each other.”

“Although they were raised in different countries, their shared blood gave them a sense of immediate connection when they finally met.”

03to give first experience

C1 · Advanced British English

v. to give someone their first experience of a difficult or dangerous activity.

v. to initiate someone into a particular activity, especially one that is difficult, competitive, or violent.

“The young player was blooded in the final ten minutes of the championship game.”

“The manager decided to blood several academy players during the early rounds of the tournament to test their composure under pressure.”

Collocations

Common phrases and expressions where native English speakers use the word “blood” in context.

01. blood vessel

Usage

Typically uncountable when referring to the fluid in general; can be countable in medical contexts when referring to specific types or samples.

Real-World Examples

“England’s blood donor service has warned blood stocks are still in short supply as it launches a fresh appeal for donors.”
Publisher Health 27 Aug 2024
“The climate crisis is threatening the medical blood supply in the US, with this summer’s record heat contributing to an emergency blood shortage, the American Red Cross has warned.”
The Guardian 20 Aug 2024

Word family

Related words

Idioms

In Literature

Cover for In Cold Blood

Cover: Public domain, via Wikimedia Commons — S. Neil Fujita.

In Cold Blood · 1966-01-01 · True crime, nonfiction

Author:
Truman Capote

Truman Capote’s 1966 masterpiece explores the brutal 1959 murders of a Kansas farming family during a home invasion. The title uses the headword to describe the calculated, emotionless nature of the crime, focusing on the lives of both the victims and the killers. This work pioneered the true crime genre by blending factual reporting with a narrative style.

Domain

Medicine

This entry

Exam level
CambridgeCambridgeCambridge English QualificationsThe exam suite from Cambridge University Press & Assessment, from A1 Movers up to C2 Proficiency. The benchmark names double as CEFR labels.A2 KeyIELTSIELTSInternational English Language Testing SystemThe 0–9 band test co-owned by the British Council, IDP, and Cambridge. Used for university entry, work, and migration.3.0–4.0TOEFL iBTTOEFL iBTTest of English as a Foreign Language, Internet-Based TestETS's academic English test, the standard route for US university admissions. Scored 0–120, with a 1–6 scale since 2026.1–6 scale: 2.0–2.524–43TOEICTOEICTest of English for International CommunicationETS's workplace English test, big in Japan and Korea. Listening & Reading scores 10–990 and tops out at C1.225–549
Frequency
Very common
Level
A2 · ElementaryOxford
Updated

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