Definition of "empty space" [empty space]

• An unoccupied space where something may be stored (noun)
• An unoccupied area or volume. (noun)
• Vacuum; a space containing nothing at all (noun)

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• "Three of the men were set upon going out upon the celebrated overhanging rock -- three thousand feet, more or less, over empty space -- to be photographed, and, would he or wouldn't he, the old 'Professor,' as with friendly impudence, meaning no disrespect, they had dubbed him, must go along and have his picture taken with the rest."
• "Removing a control wand not unlike those in the pos­session of his military colleagues, he adjusted it while waving at the empty space between them."
• "But then one hundred years ago who would have dreamt that the solid world is really 99.9999999999999 percent empty space made solid by hypothetical, force-carrying, massless particles?"