possessive

adj

1. Of or pertaining to ownership or possession.
2. Indicating ownership, possession, origin, etc.
3. Unwilling to yield possession of.

   “He is very possessive of his car.”

noun

1. (countable, uncountable)The possessive case.
2. (countable, uncountable)A word used to indicate the possessive case.

   “Take the rule about pronouns and possessives that Mr. Keegan cited in his challenge to the testing service.”

   “The New York Times, The Washington Post and The Wall Street Journal all do the opposite, opting for ’s to mark a singular possessive and a simple apostrophe for plural possessive (Harrises’ and Walzes’).”