Merriam-Webster Logo
SINCE 1828
Menu
dictionary thesaurus

by blood

idiom

Definition of by blood

: by a relationship that connects two people through their natural parents, grandparents, etc. My aunt and I are related by blood.

Learn More about by blood

Dictionary Entries near by blood

Byatt

by-bidder

Byblis

by blood

by-blow

by car

bycatch

Statistics for by blood

Look-up Popularity

Bottom 10% of words

Comments on by blood

What made you want to look up by blood? Please tell us where you read or heard it (including the quote, if possible).

Show Comments  Hide Comments 

WORD OF THE DAY

frowsy

Listen to the pronounciation of frowsy

having a messy or dirty appearance

Get Word of the Day daily email!

Test Your Vocabulary

The Exceptions Quiz III

  • one green toy robot amidst many red toy robots
  • Which of these words does not mean "nonsense"?
How Strong Is Your Vocabulary?

Test your vocabulary with our 10-question quiz!

TAKE THE QUIZ
SCRABBLE® Sprint

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

Words at Play
Ask the Editors
Word Games
×

You're never
too cool to learn something new.

Sign up for our Word of the Day
daily newsletter!

No thanks, maybe later.