The noun "blood" can be both countable and uncountable.
Meaning: the red liquid inside our bodies
Example sentence: It was a deep cut, and there was a lot of blood.
Meaning: (old-fashioned) a rich man who likes to show off
Example sentence: Charles Dickens described young bloods courting the young women of London.
Note: In current American usage, the countable word is most commonly used as a slang term for an African-American male.
Test your understanding:
- Sherlock Holmes was like any young blood when he was a student.
- Sherlock Holmes found a drop of blood on the young man's shoe.