Meaning Family loyalties are stronger than those to other people.
Usage Worldwide.
Example
- It was just me and his son in the job interview. I had no chance, blood is thicker than water you know.
Pronunciation
Idiom
Blood is thicker than water
What does "Blood is thicker than water" mean?
Family loyalties are stronger than those to other people.
Blood is thicker than water
Britain. Probably coined by Sir Walter Scott, 1815.