Definition of brother in US English:



  • 1A man or boy in relation to other sons and daughters of his parents.

    • ‘Jane, John and Desmond together with their parents and four brothers celebrated in style and were joined by a huge crowd of friends and neighbours on that special night in their young lives.’
    • ‘You need to talk to your brothers and your parents.’
    • ‘Kohli, along with his parents and brothers, are suspects in a fake passport case registered at Mohali.’
    • ‘The brothers ' biological parents had been physically abusive and neglectful.’
    • ‘Mr Campbell's parents and brothers are among the many relatives who have flown to New York.’
    • ‘Traveling with my parents, my brothers and sister, and our then one-year-old daughter did not sound like a very relaxing vacation to me.’
    • ‘But while his parents and brothers are dead, five cousins have now been contacted, allowing the long-lost airman finally to be laid to rest in Scotland.’
    • ‘She lives with her parents and two adult brothers in Alto Sopocachi (a relatively nice area of La Paz).’
    • ‘Generally your property passes to people in the order of wife or husband, children, grandchildren, parents, brothers and sisters, more distant relatives.’
    • ‘She is mourned by her son, daughters, brothers, sisters, brothers-in-law, sisters-in-law relatives and friends.’
    • ‘The death of such an ambitious, determined, talented and popular young man, with his life in front of him, has left his parents and brothers devastated.’
    • ‘He and his wife lived with his parents and brothers in a Soviet-style flat in one of the Soviet-built micro districts.’
    • ‘And some relatives don't even know where their parents, brothers or sons are being held.’
    • ‘One was 10 when she, her parents and her elder brothers were arrested.’
    • ‘To Tara's parents, brothers and sisters, relations and friends we offer our deepest sympathies and wish upon her the light of Heaven.’
    • ‘Children are encouraged to attend with parents, brothers, sisters, relatives and pets to direct their own family portrait.’
    • ‘The family had a difficult financial time during Murad's childhood, when little Murad and his brothers helped their parents run a small restaurant.’
    • ‘The brothers ' proud parents, Geoff and Sue Finch, of Clacton, have told how they were inundated with goodwill messages while their sons and daughter-in-law were away.’
    • ‘If she won the £100,000 prize for the Miss World competition she would move with her three older brothers and parents to Cyprus where the family often go on holiday.’
    • ‘The £14,000-a-week Everton striker shares a terrace home with his parents and two younger brothers in Croxteth, Liverpool.’
    male sibling
    View synonyms
    1. 1.1 A male associate or fellow member of an organization.
      ‘fraternity brothers’
      • ‘On a related note, one of my old fraternity brothers has a new blog.’
      • ‘By the way, if anyone sees my boss, remember that the Republican scumbag thinks I'm on Nantucket with my fraternity brothers.’
      • ‘The guy with the shaved head is pretending to fight with his fraternity brother.’
      • ‘I would like to remind my fellow brothers and sisters in the ANC that their primary objective should be service delivery and the eradication of poverty.’
      • ‘When I became a Freemason, I placed a Masonic square and compass emblem on my car, as is common practice, so I could be recognized on the road by my fellow brethren.’
      • ‘There are members of various religions and their denominations among the brethren of the Scottish craft.’
      • ‘Your fraternity brother's main reason for existence is to witness your exploits with style.’
      • ‘It was a Pledge Active: planned, executed and paid for by the pledges - no longer civilians, not yet full fraternity brothers.’
      • ‘I now know that my fellow brothers and sisters, the lawyers of New Zealand, will be in a position to practise in front of the highest court of our country.’
      • ‘My college fraternity brothers have a wonderful ritual.’
      • ‘Fraternity brothers everywhere, you have a future!’
      • ‘Others were from rugby teammates, fraternity brothers, business associates, and boyfriends.’
      colleague, associate, companion, partner, comrade, comrade-in-arms, co-worker, fellow, friend
      View synonyms
    2. 1.2North American informal A black man (chiefly used as a term of address among black people).
      • ‘We didn't connect like the brothers would here.’
      • ‘I'm only picking on the brothers who wear the bling because of hip-hop's wide-reaching and conspicuous influence.’
      • ‘Almost overnight, brothers shifted from Black Power chic to gangster buffoon.’
    3. 1.3 A fellow human being.
      • ‘We are working with the labor federations in the affected states and with relief organizations to target help to our working brothers and sisters who need it most.’
      • ‘Comrades, friends, brothers and sisters - we were right.’
      • ‘If we truly recognise vagrants as fellow brothers and sisters in desperate need of help, all concerned will move steadfastly to alleviate their woes.’
      • ‘That smell, my fellow cellulite ridden brothers and sisters, that smell is not cup cakes, toaster strudel or spaghetti!’
      • ‘I will pray for their confused souls because our brothers and sisters who have lost their way need charity and prayers, not prideful judgements and wrath.’
    4. 1.4 A thing which resembles or is connected to another thing.
      ‘the machine is almost identical to its larger brother’
      • ‘She dropped the tray among its fellow brethren and shook her hands, wondering how to get rid of the grease clinging to her skin.’
  • 2Christian Church
    A (male) fellow Christian.

    • ‘We have already slid into the infancy of theocratic fascism, and my brothers and sisters in Christ don't know they are being used.’
    • ‘I immediately say down with him as I realized that he was a Christian brother.’
    • ‘However this loyalty ought not be solely to Christ and there must exist also charity towards our fellow brethren.’
    • ‘Luther's individualism vested an enormously heightened dignity in the least of Christ's brothers and sisters.’
    • ‘But I ask you as a brother in Christ to cease attacking my character and my mental stability.’
    • ‘Help me Lord to work in harmony with my brothers and sisters in Christ, to rise above small-mindedness and to walk in victory!’
    • ‘These saints are our brothers and sisters in the Lord, and many of their life stories have been etched into our minds.’
    • ‘And the apostles and brethren that were in Judaea heard that the Gentiles had also received the word of God.’
    • ‘Brothers in Christ means white brothers in Christ in many cases.’
    • ‘As more Catholics question the death penalty, the split from their brethren on the Christian right is becoming more pronounced, changing the politics of a bedrock issue.’
    • ‘We can have revival the same way as our brothers and sisters in Christ, won theirs!’
    • ‘One of the silver linings to this dark cloud is the lively and blessed love expressed as brothers and sisters in Christ come together as the family to pray for a beloved brother and sister.’
    • ‘One very useful thing Catholics can do to facilitate conversation with the Protestant brethren is pay attention to how much Catholic doctrine is already believed by them.’
    • ‘I get to help decide whether he get to be my President, not my brother in Christ.’
    • ‘The star said a Christian brother in his local school added to his childhood misery.’
    • ‘It's a hard thing, to ask your Christian brother and sister to apologise for doing something they sincerely believe is right.’
    • ‘My desire is that Protestants would see me as a friend and a brother in Christ.’
    1. 2.1 A member of a religious order or congregation of men.
      ‘a Benedictine brother’
      • ‘Blaming them is to forget that Augustine called the Donatists brothers, and encouraged his congregation to do the same.’
      • ‘The other prison, the Curragh, in Co Kildare, takes offenders who are priests and religious brothers.’
      • ‘The male religious orders fared even worse: in 2001, there was not a single vocation to the religious brothers.’
      • ‘The order also has 400 brothers and about 1,000 lay members.’
      • ‘They don't grow as their Pentecostal brothers and make no impact on the Brazilian society as a whole.’
      • ‘He spent his early life courting disapproval, mincing down the corridors in front of the religious brothers to avoid conforming.’
      • ‘He had become a brother in the Carmelite order right after he had gotten out of high school.’
      • ‘John of the Cross forgave his Carmelite brothers who imprisoned him in a dungeon.’
      • ‘Stephen goes out walking along the sea wall, where he passes a group of religious brothers that he can barely look at.’
      • ‘Aging populations of nuns, brothers and priests still reside in large properties throughout the state.’
      • ‘But then we got here and I saw how your own brethren in the Order have failed to appreciate your towering nobility.’
      • ‘Fr Tony Lester is a Carmelite friar and Prior to a community of Carmelite brothers who live in More House on Heslington Lane.’
      • ‘The Committee also wishes to invite all priests, nuns and brothers who are natives of the Parish.’
      • ‘He was looked after by two young brothers from a religious movement just outside Rouen.’
      • ‘In 1970, 750 people were seeking to become priests, brothers and nuns.’
      monk, cleric, friar, religious, regular, monastic, contemplative
      View synonyms


North American
  • Used to express annoyance or surprise.

    • ‘Oh brother, what a day for brilliant Ireland.’
    • ‘Oh brother, what a meeting of the minds this is gonna be.’
    • ‘Oh brother what a super bowl!!!’


  • brothers in arms

    • Soldiers fighting together, especially in a war.

      • ‘He's here, he loves, he feels, he's not afraid to get too close to these mortals, and where other heroes see dirty uneducated barbarians, he sees brave and loyal brothers in arms.’
      • ‘Although focused on their challenging mission, the warriors on the front lines never forget their missing brothers in arms.’
      • ‘The military's hardly a monolithic organization, and you can always find someone in the service who didn't like one of his brothers in arms.’
      • ‘You are Sergeant Baker, the lead of your paratrooper squad, and you must push hard to ensure you can fight and survive through eight harrowing days that will define history, and unite you forever as brothers in arms.’
      • ‘Now please stop helping kill my brothers in arms.’
      • ‘These characters often become brothers in arms in the heat of warfare.’
      • ‘Retired US servicemen living in Pattaya joined in services on US Veterans Day, also known as Remembrance Day in other parts of the world, to remember fallen brothers in arms on November 11 each year.’
      • ‘‘He threw his arms around me,’ recalls Paul, ‘saying we were brothers in arms and all that.’’
      • ‘The Marines' remains are gathered by teary eyed comrades, brothers in arms, and shipped home in a box.’
      • ‘I cannot go to my brothers in arms, because they are dead!’


Old English brōthor, of Germanic origin; related to Dutch broeder and German Bruder, from an Indo-European root shared by Latin frater.