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", "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.