An engagement or betrothal is the period of time between the declaration of acceptance of a marriage proposal and the marriage itself. During this period, a couple is said to be fiancés, betrothed, intended, affianced, engaged to be married, or simply engaged. Future brides and grooms may be called fiancée (feminine) or fiancé (masculine), the betrothed, a wife-to-be or husband-to-be, respectively. The duration of the courtship varies vastly, and is largely dependent on cultural norms or upon the agreement of the parties involved.