blood brotherˌblood ˈbrother noun [countable] 
a man who promises loyalty to another, often in a ceremony in which the men’s blood is mixed together
a man who promises loyalty to another, often in a ceremony in which the men’s blood is mixed together- invertebrate
- inverted comma
- inverted snobbery
- invest
- investigate
- investigation
- investigative
- investigator
- investigatory
- investiture
- investment
- investment bank
- investment banker
- investment banking
- investment club
- investor
- inveterate
- invidious
- invigilate
- invigilator
- invigorate
- invigorating
- invincibility
- invincible
- inviolability