The plural form of 'staff', which means a group of people who work for an organization or business.
Having a good staff is important for a business to run well.
Examples:
The staffs at the store are always very helpful.
She manages the staffs at the hospital.
The staffs in the restaurant work hard every day.
The staffs in the office are having a party.
The staffs in the hotel are all very friendly.
The staffs in the school take care of the children.