blood brother

See synonyms for blood brother on
  1. a person's brother by birth.

  2. a male person bound to another by ties of great friendship.

  1. something usually associated with or thought to exist inseparably from another thing, quality, circumstance, etc.: Humility is often the blood brother of patience.

  2. a male established in a close relationship with another male through the performance of a specific ritual, as the commingling of blood.

Origin of blood brother

Middle English word dating back to 1350–1400

Other words from blood brother

  • blood brotherhood, noun

Words Nearby blood brother Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use blood brother in a sentence

  • These studies, which use a peculiar surgical method called parabiosis that turns mice into literal blood brothers, show that aging is not inevitable.

  • The blood intermingled a moment, then they rubbed noses and each repeated the word: "Blood-brother," three times.

    The Argus Pheasant | John Charles Beecham
  • And how I've given you the love of a blood-brother to take the place of the brother who died?

    Riders of the Silences | John Frederick
  • Slaughter of a member of the totem clan, of a blood-brother, must be atoned for because he is of the totem blood.

  • Moussorgsky's style is blood-brother to the spoken language, is indeed as much the Russian language as music can be.

    Musical Portraits | Paul Rosenfeld

British Dictionary definitions for blood brother

blood brother

  1. a brother by birth

  2. a man or boy who has sworn to treat another as his brother, often in a ceremony in which their blood is mingled

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012