IPA: /ɪˈspaʊzər/
KK: /ɪˈspaʊzər/
A person who supports or adopts a particular cause or belief, often advocating for it as their own.
As an espouser of environmental issues, she dedicated her life to promoting sustainability.
Espouser is derived from the Old French word 'espouser' (meaning to marry or to betroth), which itself comes from the Latin 'sponsare' (meaning to betroth or to promise). The word 'espouser' means to take someone as a spouse or to marry them.
Think of the Old French word for marrying ('espouser') — this helps you remember that 'espouser' means to take someone as a spouse.