This is the 4093rd most frequent Russian word.
открытые
"Open" or "transparent."
In this sentence, 'открытом' refers to 'open space' or 'outdoor setting', emphasizing an open environment.
Мария любит проводить время на открытом воздухе.
Maria enjoys spending time outdoors.
Here, 'открытые' describes the bookshelves as being open, accessible, and not enclosed.
В нашей библиотеке есть открытые книжные полки.
Our library has open bookshelves.
In this usage, 'открытые' signifies 'unresolved' or 'open-ended' in relation to questions.