C1noun3K

Apparatus

UK /["/ˌæpəˈreɪtəs/"]/US /["/ˌæpəˈrætəs/"]/

Definition

the tools or other pieces of equipment that are needed for a particular activity or task

In simple words: A set of tools or equipment for a specific purpose.

Examples

  • a piece of laboratory apparatus
  • Firefighters needed breathing apparatus to enter the burning house.
  • Science departments say they are lacking basic apparatus.
  • the power of the state apparatus
  • We cannot do without the apparatus of government in protecting the rights of the individual.
  • the sensory apparatus

Usage notes

Use 'apparatus' when referring to complex machinery or systems, often in scientific or technical contexts. It is less common in casual conversation.

Grammar pattern

standalone noun

Memory hint

Think of 'a pair of us' – imagine two friends using tools together.

Collocations

  • breathing
  • electrical
  • experimental
  • piece
  • the apparatus of government
  • the apparatus of the state
  • breathing
  • electrical
  • experimental
  • piece
  • the apparatus of government
  • the apparatus of the state

Synonyms

  • equipment
  • instruments
  • gear
  • machine
  • device

Antonyms

  • disassembly
  • dismantling
  • removal

Common mistakes

  • Confused with 'appliance' – 'appliance' refers to household devices like microwaves.
  • Using it in informal contexts – 'apparatus' is more formal and technical.