shelf
/ʃɛlf/noun
A flat board attached to a wall or built into furniture, used for holding or displaying things.
Example sentences
- “He reached up and took a dictionary from the top shelf.”
- “Please put the cereal back on the shelf when you're done.”
The plural is 'shelves'. 'Off the shelf' means ready-made rather than custom, and 'shelf life' is how long a product stays usable.