# shelfback

> English word · Noun

## Definitions
1. The vertical surface forming the back of a shelf.
2. The spine of a book.

## Etymology
From shelf + back.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/shelfback