Rubbish is a synonym for garbage or trash. The word is more commonly used by speakers of British English than by speakers of American English.

The noun rubbish also means writing or speech that is worthless, untrue, or nonsense, especially in British English. Your teacher might tell you that your paper thesis is a load of rubbish if it states that Winston Churchill and Franklin Roosevelt were aliens sent from another planet to "fix" World War II. In British slang, rubbish is also a verb that means to criticize strongly. Don't be surprised when the professor rubbishes your paper — he's a well-known Churchill scholar.

Definitions of rubbish
  1. noun
    worthless material that is to be disposed of
    synonyms: garbage, refuse, scrap, trash
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    scrap metal
    discarded metal suitable for reprocessing
    debris, detritus, dust, junk, rubble
    the remains of something that has been destroyed or broken up
    rubbish carelessly dropped or left about (especially in public places)
    dust consisting of a mixture of small coal fragments and coal dust and dirt that sifts out when coal is passed over a sieve
    scrap iron
    iron to be melted again and reworked
    type of:
    waste, waste material, waste matter, waste product
    any materials unused and rejected as worthless or unwanted
  2. noun
    nonsensical talk or writing
    synonyms: applesauce, codswallop, folderol, trash, tripe, trumpery, wish-wash
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    type of:
    drivel, garbage
    a worthless message
  3. verb
    attack strongly
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    type of:
    assail, assault, attack, lash out, round, snipe
    attack in speech or writing
Word Family

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