This is the 746th most frequent Russian word.
сегодняшний
"Сегодняшний" means "today's" or "of today."
'Сегодняшний' is used as an adjective modifying 'день', referring to the day of today.
Сегодняшний день был очень продуктивным.
Today's day was very productive.
'Сегодняшняя' is used as an adjective modifying 'газета', referring to the newspaper published today.
Сегодняшняя газета содержит интересные новости.
Today's newspaper contains interesting news.
'Сегодняшней' is used in the prepositional case as an adjective modifying 'встрече', referring to the meeting scheduled for today.