Proper noun examples in sentences:
A proper noun is a word that derives from a common noun; for example, fruit is a noun referring to an entire class of trees or fruit.
This class may include figs, oranges, peaches, melons, apples, mangoes, bananas, grapes, persimmons, pears, apricots, and strawberries. Proper nouns are not to be confused with nouns that occur in the sentence as proper nouns in themselves. For example, the phrase “the fruit of the peach tree” is not a proper noun; it is an adjective describing a single tree.