The crossword solution for the term BIG NIGHT is EVE, which is a three-letter word. EVE is a biblical figure from the Book of Genesis in the Bible, who is widely known as the first woman created by God. She is also known as the mother of all living beings. In the story of the Garden of Eden, EVE is tempted by the serpent to eat the forbidden fruit, which leads to her and Adam's expulsion from the Garden.