Betrothed/bɪˈtrəʊðd/ Definition 1 of 2Pro Tip 1/3Traditionally Formal Used in formal contexts or when discussing traditional marriage arrangements At the engagement party, they honored the betrothed with a toast. Pro Tip 2/3Not Interchangeable Don't confuse 'betrothed' with 'spouse'; 'betrothed' means engaged, not married. My betrothed and I have started wedding planning. Pro Tip 3/3Singular or Plural 'Betrothed' can refer to one person or a couple, depending on context. The betrothed stood happily together.