Blood is thicker than water

1. Our loyalty to our family — that is, to our blood relations — is strong no matter how we may feel about them.

Idioms and Phrases

Family ties are closer than other relationships. For example, Nancy will drop everything to help her sister; blood is thicker than water . Alluding to the fact that water evaporates without leaving a mark whereas blood leaves a stain, this proverb was first recorded about 1412.