If there is a variety of something, there are many different choices or many different kinds of things.
There is a variety of students in my classroom.
There are many different varieties of people in the world.
How much variety do you have in your diet?
How many varieties of animals are there in the world?
We have at our fingertips a variety of electronic devices for getting information.
My friend, Olson, loves his job because he has a variety of interesting tasks to complete during the day.
There was an interesting variety of people at the party we attended last night.
Variety is the spice of life. (This is a common expression in English. It means that having a variety of something makes life more interesting–and that’s a good thing!)