The term 'First Appearances' can be summarized as 'DEBUTS, ' which is a six-letter word. This term refers to the first time something is seen or experienced, such as the first time a person appears in public or the first time a product is released. It can also refer to the first time an event takes place, such as the first time a movie is shown in theaters. In any case, it is a significant moment that marks the beginning of something new.