The term 'COUPLE'S POSSESSIVE' can be broken down into two crossword solutions: OURS (4 letters) and OUR (3 letters). Both of these terms are possessive pronouns that are used to indicate ownership or possession by a couple. The term OURS is the plural possessive form of the pronoun 'our', while OUR is the singular possessive form. Both terms are used to indicate that something belongs to both members of a couple, rather than just one.