act of faith

Compare Portuguese auto da fé.

act of faith (plural acts of faith)

1. (religion) An action that demonstrates one's religious faith.
2. (figuratively) An action taken based on trust in a positive outcome with no guarantees.

   Synonym: leap of faith

• “an act of faith” in Longman Dictionary of Contemporary English, Longman.
• “act of faith”, in Merriam-Webster Online Dictionary, Springfield, Mass.: Merriam-Webster, 1996–present.
• “act of faith”, in Lexico, Dictionary.com; Oxford University Press, 2019–2022.
• “act of faith”, in Collins English Dictionary.