espouse in WordNet English dictionary

1. take up the cause, ideology, practice, method, of someone and use it as one's own
   "She embraced Catholicism"; "They adopted the Jewish faith"
   espouse  embrace  adopt  sweep up 
   
2. choose and follow; as of theories, ideas, policies, strategies or plans
   "She followed the feminist movement"; "The candidate espouses Republican ideals"
   adopt  follow  espouse 
   
3. take in marriage
   marry  get married  wed  conjoin  hook up with  get hitched with  espouse