Examples of Apparatus in a sentence The firefighter donned a breathing apparatus before entering the blaze, to search for people trapped in the inferno. The president’s security apparatus fanned out so that they could keep watch on all angles of the event.

Use the word in a sentence Here are some examples of how to use the word apparatus in a sentence: - The laboratory apparatus was used to conduct experiments and analyze data. - The firefighters used their apparatus to put out the fire and save lives. - The legal apparatus is responsible for enforcing laws and ensuring justice is served.

Sentence Examples The outer doors are missing, the inner doors jammed, and the whole apparatus knocked out of alignment. The apparatus is advantageously used in an interferometer to form a device that modulates the amplitude of the optical signal.