Standard word for a page in a book, document, or website.
この本は300ページあります。
This book has 300 pages.
次のページを開いてください。
Please turn to the next page.
page ...; nth page
Used as a suffix after a number to indicate a specific page number.
答えは10ページに載っています。
The answer is on page 10.
3ページ目から読んでください。
Please read from page 3.
I read while turning the pages of the book.
Please open your textbook to page 35.
I dog-eared the page of the part I liked.
I skipped the boring parts and read past those pages.