chaptermarker
nounUK /ˈtʃæp.təˌmɑː.kə/
US /ˈtʃæp.tɚˌmɑːr.kɚ/
A chaptermarker is a thing that shows where a new part of a book starts.
She put a chaptermarker on the page where the next story begins.
OTHER MEANINGS
2. A small label or tab used to mark a section in a document or file.
He added a chaptermarker to each folder so he could find them fast.
3. A digital marker that shows the start of a chapter in an audio or e-book.
The app puts a chaptermarker at the beginning of every new section.
4. A person or tool that marks chapters for printing or binding.
The chaptermarker checked each book before it went to the printer.