What is another word for call bluff?
Pronunciation: [kˈɔːl blˈʌf] (IPA) 
There are many different words that can be used as synonyms for the phrase "call bluff." Some of these words include challenging, confronting, questioning, doubting, and provoking. All of these words carry the same meaning of questioning someone's claims and forcing them to prove their honesty or credibility, whether in a game of poker or in a more serious situation. Other synonyms for "call bluff" could include exposing a falsehood, unmasking a deception, or calling someone's bluff. Whatever language we use, the essential idea is to challenge someone who is not being truthful and force them to either back up their claims or admit they are lying.
