A possessive apostrophe is an apostrophe used in a noun to show that the noun owns something (e.g., woman's hat). More specifically, a possessive apostrophe and the letter s are added to a noun to make the noun possessive. For example: Simon's car the dog's bone the fairies' village

To show possession with a singular noun, add an apostrophe plus the letter s. Examples: a woman’s hat the boss’s wife Mrs. Chang’s house

Let's take a look at some examples. The cat's tail was fluffy. Cat is a singular noun so you need to add an apostrophe and "s" to show that the tail belongs to the cat. Charles' cat was naughty. Charles is a singular noun that ends in an "s", so you need to add an apostrophe to show that the cat belongs to Charles. The brothers' feet were muddy.

The possessive case of plural nouns that end in s is formed by adding an apostrophe: This is the boys’ bedroom. My parents’ house is a lovely old one. The scissors’ handles just snapped off. The Jeffersons’ yard is always beautifully landscaped.