bookend
nounUK /ˈbʊk.ɛnd/
US /ˈbʊk.ɛnd/
A bookend is a heavy thing that holds books up so they stay neat on a shelf.
She put a bookend on each side of her books so they would not fall over.
OTHER MEANINGS
2. Either of two things that come at the beginning and end of something and frame it.
The two concerts acted as bookends to the summer festival.
3. To place something at the beginning and end of a series or event.
They bookended the show with two of their most famous songs.
4. One of a pair of matching objects placed at opposite ends of a row.
The matching lamps bookended the long dining table.