A sharing pronoun is a pronoun used to refer to something that is shared between two or more people. The two most common sharing pronouns are 'ours' and 'our, ' which both have four and three letters, respectively. 'Ours' is a possessive pronoun that is used to refer to something that belongs to two or more people, while 'our' is a possessive adjective that is used to modify a noun to indicate that it belongs to two or more people.