English Reference
noun · adjective · verb

brass

n. · adj. · v.
US /ˈbɹæs/ UK /bɹˈɑːs/ brass UK spelling brassed, brasses, brassing

  1. 01 B2 Upper Intermediate

    n.a bright yellow metal made by mixing copper and zinc.

    n.a metallic alloy consisting essentially of copper and zinc. Uncountable in its material sense.

    Simple

    The door had a heavy brass handle that shone in the sunlight.

    In context

    The interior designer specified solid brass fixtures to provide a warm, traditional contrast against the modern marble surfaces.

  2. 02 B2 Upper Intermediate Music

    n.musical instruments made of metal that you blow into, like trumpets and trombones.

    n.a family of wind instruments, typically made of metal, played by vibrating the lips against a mouthpiece. Often used as a collective noun for a section of an orchestra.

    Simple

    The brass started playing a loud fanfare at the beginning of the parade.

    In context

    The composer wrote a demanding part for the brass, requiring the trumpets to sustain high notes over the rest of the ensemble.

    hornswind instruments
    stringswoodwinds
  3. 03 C1 Advanced Informal

    n.the people in the highest positions of an organization, especially the military or a big company.

    n.high-ranking officers or senior executives within a hierarchy. Informal in register; often used collectively as 'the top brass'.

    Simple

    The top brass decided to close the factory despite the workers' protests.

    In context

    After the failed operation, the military brass faced intense questioning from the parliamentary committee regarding their strategic oversight.

  4. 04 C2 Proficiency Informal

    n.a very confident attitude that might seem rude to others.

    n.impudence, effrontery, or excessive self-assurance. Uncountable; often used in the phrase 'have the brass to'.

    Simple

    I can't believe he had the brass to ask for a raise after being late every day.

    In context

    She had the sheer brass to walk into the private event without an invitation and act as if she owned the venue.

  5. 05 C2 Proficiency DialectBritish EnglishInformal

    n.a slang word for money used in some parts of England.

    n.a slang term for money. Primarily associated with Northern English dialects; increasingly dated in modern usage.

    Simple

    He made a lot of brass selling old furniture at the market.

    In context

    In the old industrial towns, the local saying was 'where there's muck, there's brass', meaning where there is dirt, there is money to be made.

  6. 06 B2 Upper Intermediate

    adj.made of the metal brass, or having its yellow color.

    adj.composed of or pertaining to the alloy brass; exhibiting the characteristic yellow-gold color of the metal.

    Simple

    She wore a brass ring that she bought at a craft fair.

    In context

    The antique clock featured intricate brass gears that were still visible through the glass casing.

  7. 07 C2 Proficiency Technical Technical

    v.to cover something with a thin layer of brass.

    v.to coat or plate a surface with brass. Transitive; usually refers to industrial or decorative finishing processes.

    Simple

    The manufacturer decided to brass the steel fittings to make them look more expensive.

    In context

    The workshop was equipped to brass various hardware components, providing a corrosion-resistant finish that mimicked solid metal.

The problem was that the earliest physical evidence of brass production would be found nearly 600 years later, in the 16th century A.D.

Phys.org· 14 Aug 2026
This entry
Level B2 · Upper Intermediate
Frequency Common
Updated