What context can I use each word in?
Learn when and how to use these words with these examples!
instrument
Example
The surgeon used a surgical instrument to perform the operation. [instrument: noun]
Example
She played the violin beautifully during the concert. [instrument: noun]
Example
The weather station has various instruments to measure temperature, humidity, and pressure. [instruments: plural noun]
apparatus
Example
The laboratory apparatus included a centrifuge, microscope, and spectrometer. [apparatus: noun]
Example
The heating and cooling apparatus in the building kept the temperature comfortable year-round. [apparatus: noun]
Example
The voting apparatus was set up to ensure a fair and accurate election. [apparatus: noun]
Good things to know
Which word is more common?
Instrument is more commonly used in everyday language, while apparatus is more technical and formal.
What’s the difference in the tone of formality between instrument and apparatus?
Apparatus is generally more formal and technical than instrument, which can be used in both formal and informal contexts.