The shopping centre was closed.
There is a hole in the centre of my doughnut.
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.
the word rag in a sentence
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."
The center of a tornado
The core is the center of the Earth.
Our school is adjacent to the Community Center.
The research center is affiliated with the university.
The focal point of a circle is the center.
The bull's-eye is the center of the target.
The ibis stood regally in the center of the marsh.
There is a Tourist Information Center by the shores of the lake.
I had to go the the diet center to be weighed.
The doctor advised me to put my mom in a rehab center.
A Spinal Cord runs through the center of the backbone
The court decided to remand the defendant to a drug treatment center.
The Snickers candy bar had great-tasting nougat in the center.