What is the meaning of Shelf?

A flat, rigid structure, fixed at right angles to a wall or forming a part of a cabinet, desk, etc., and used to display, store, or support objects.

The capacity of such an object

A projecting ledge that resembles such an object.

The part of a repository where shelvesets are stored.

A reef, sandbar, or shoal.

Douglas Harper (2001–2024) “shelf (n.2)”, in Online Etymology Dictionary.

Alternative form of schelfe

Source: wiktionary.org