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1. Choose and follow; as of theories, ideas, policies, strategies or plans
   "The candidate espouses Republican ideals"
   - adopt, follow
    
2. Take in marriage
   - marry, get married, wed, conjoin, hook up with, get hitched with, get hitched, tie the knot
    
3. Take up the cause, ideology, practice, method, of someone and use it as one's own
   "She espoused Catholicism"
   - embrace, adopt, sweep up

Derived forms: espoused, espouses, espousing

See also: espousal

Type of: accept, choose, pick out, select, take, unify, unite