「今日」(kyou) means "today." It's used to refer to the current day. You can use it with verbs to talk about what you are doing or what is happening on this particular day. Example: 「今日、休みです」(Kyou, yasumi desu) means "Today is a holiday/I am off today."

「今日(きょう)」は「今日(きょう)」という意味(いみ)です。現在(げんざい)の日にち(ひにち)を表(あらわ)す時(とき)に使(つか)います。例(れい)：「今日(きょう)、休み(やすみ)です」。