1. the act of adopting or supporting a cause, belief, or movement
2. a betrothal or engagement to be married
Usage: archaic or formal

Examples

• Her espousal of environmental causes made her a respected activist.
• The politician's espousal of tax reform won him many supporters.
• His espousal of the new technology helped the company modernize.
• The espousal of human rights is central to the organization's mission.
• In medieval times, an espousal was often arranged by families.
• The movement gained momentum through the espousal of influential leaders.