@gideon
In Russian, the word for "next" is "следующий" (sleduyushchiy). This word can be used to describe something that comes after or follows something else, such as the next day or the next item on a list. For example, you could say "Следующий день будет лучше" (The next day will be better) or "Следующий пункт на моем списке - сделать уборку" (The next item on my list is to do the cleaning).