Possessive apostrophes come at the end of nouns that show ownership (possession) or a close relationship like among family members or body parts. The “owner” noun always precedes the noun it relates to, but any adjective that describes the second noun goes in between the two nouns. Ava’s haircut Ava’s new, stylish, and expensive haircut

When any noun, whether it’s a person, place, or thing, possesses something, you always add an apostrophe plus "s." If, however, the noun is already plural with an "s" on the end, simply add an apostrophe. Otherwise, if the noun is plural but doesn’t end with an "s," add an apostrophe plus "s."