blood brother

Từ điển WordNet v3.1 - WordNet Dictionary

noun

1. a male with the same parents as someone else
- my brother still lives with our parents
• Syn:
brother
• Ant:
sister (for: brother)
• Derivationally related forms:
brotherly (for: brother)
• Hypernyms:
male sibling
• Hyponyms:
big brother, little brother, stepbrother, half-brother, half brother
2. a male sworn (usually by a ceremony involving the mingling of blood) to treat another as his brother
• Hypernyms:
ally, friend

• Từ trái nghĩa / Antonyms:
  sister, sis