To occupy is to remain in one place for an amount of time. You can also use this word to describe activity.
simple
past
past participle
occupy
occupied
occupied
They’ve occupied the same apartment for the last 35 years.
This piano occupies too much space. We need to get rid of it.
Running your own business will occupy a lot of your time.
You can’t go into the bathroom. It’s occupied. (Someone is in there.)
American troops occupied Baghdad for many years before they left. (To occupy a country or a city is to exert military control. )
Protestors in Cairo occupied Tahrir Square until their demands were met.
The Occupy Wall Street movement in New York and other American cities reflected the growing worldwide dissatisfaction with leaders in government and business.
The word "occupant" is a noun. It refers to a person who occupies or takes up space.
According to the lease, this apartment is limited to two occupants.
There were four occupants in the car when it crashed.
The word "occupation" is also a noun. You can use it in place of the word "job" or "career."
What’s your occupation?
Teaching is a rewarding occupation.
There are many new occupations that have been created with the popularity of the internet and mobile technology.
occupation: bricklayer