The shopping centre was closed.
There is a hole in the centre of my doughnut.
Here are some sentences.
Find the center of the circle.
How far is it to the center of town?
Whether a word is a noun or a verb depends on its function in the sentence. Centre is a noun in the following sentence: People thought that the Earth was the centre of the universe. Centre is a verb in the next sentence: "All these theories centre on two battles in Estonia" (quoted from Wikipedia)
By definition a cherub is an angelic being. At Paula's wedding, there was a large golden cherub in the center of the ballroom.
A contraption is another word for a (contrived) device, so a sentence with that word could be, " In order to bend the wooden strips into the shape of the canoe we were building, I had to first steam them and then place them in a CONTRAPTION called a 'jig', which put force on the ends to bend them, while holding the center in a fixed position."
Wild honeybees often make their nest in a hollow tree.
the word rag in a sentence
The core is the center of the Earth.
Our school is adjacent to the Community Center.
The research center is affiliated with the university.
Example sentence for the verb to converge: The main roads converge at the center of town.
There is a Tourist Information Center by the shores of the lake.
The bull's-eye is the center of the target.
The ibis stood regally in the center of the marsh.
I had to go the the diet center to be weighed.
The focal point of a circle is the center.
She ran towards the finish line with determination and focus.
The doctor advised me to put my mom in a rehab center.
The court decided to remand the defendant to a drug treatment center.