1. shelf - Noun
2. shelf - Verb
A flat tablet or ledge of any material set horizontally at a distance from the floor, to hold objects of use or ornament.
A sand bank in the sea, or a rock, or ledge of rocks, rendering the water shallow, and dangerous to ships.
A stratum lying in a very even manner; a flat, projecting layer of rock.
A piece of timber running the whole length of a vessel inside the timberheads.
Source: Webster's dictionaryIntellectual property has the shelf life of a banana. Bill Gates
People find ideas a bore because they do not distinguish between live ones and stuffed ones on a shelf. Ezra Pound
There is more stupidity than hydrogen in the universe, and it has a longer shelf life. Frank Zappa
Man hands on misery to man. It deepens like a coastal shelf. Get out as early as you can, And don't have any kids yourself. Philip Larkin
There's a Bible on the shelf there. But I keep it next to Voltaire-poison and antidote. Bertrand Russell
Books are like imprisoned souls till someone takes them down from a shelf and frees them. Samuel Butler (novelist)