That form of a noun phrase which indicates that it represents a possessor. Possessives are normally made by adding –‘s to the noun.
Examples are: my mother’s friends, my father’s house, children’s books and the students’ work.
The possessive can also be expressed with of, especially when the possessor is not alive.
Examples are: the leg of a table (BUT NOT table’s leg), the cover of a book (BUT NOT book’s cover)
A determiner which expresses possession. Examples are: my, your, his, our or their
Words like mine, yours, hers, his or ours are called possessive pronouns.