When it comes to synonyms for the phrase "instance of trusting," there are several options to choose from. If you want to convey the act of placing confidence in someone or something, try using words like reliance, dependence, or faith. These synonyms suggest a sense of trust that extends beyond a single instance and into a more enduring relationship. Alternatively, if you want to capture the fleeting moment of vulnerability that comes with trusting, consider words like openness, vulnerability, or exposure. These synonyms highlight the risk and courage involved in letting someone in and relying on them. Regardless of which synonym you choose, remember that trust is a delicate and powerful emotion that requires careful handling.