She gave him a book.

I cleaned the object glass of the microscope.

The teacher used a science experiment as an object lesson to explain the concept of gravity.

The museum has a vast collection of objects of art.

The system automatically deletes expiring objects after 30 days.

Any objections to the proposed plan?

A quasi-stellar object, also known as a quasar, is a celestial object that emits an exceptionally large amount of energy.