FSY is an acronym that stands for "fingers crossed". It is a gesture of hope or luck, typically made by crossing one's fingers. There are several synonyms that can be used instead of FSY, such as "hopeful", "optimistic", "anticipating", "expectant", and "anxious". Other phrases that might be used as synonyms for FSY include "wishing for the best", "keeping my fingers crossed", or "hoping against hope". Regardless of the phrase used, the sentiment behind FSY represents a hopeful mindset that is focused on positive outcomes and good fortune. In times of uncertainty or stress, FSY can provide a reassuring reminder that good things are still possible.