Synonyms of believe in something
believe in something
advocateIf you advocate a particular action or plan, you recommend it publicly.
• He advocates fewer government controls on business.
recommendsupportchampionencourageproposefavourdefendpromoteurgeadvisejustifyendorsecampaign forprescribespeak forupholdpress forargue forcommendplead forespousecountenancehold a brief for (informal)
championIf you champion a person, a cause, or a principle, you support or defend them.
• He passionately championed the poor.
Thesaurus for believe in something from the Collins English Thesaurus