What is the meaning of Empty?

Devoid of content; containing nothing or nobody; vacant.

Containing no elements (as of a string, array, or set), opposed to being null (having no valid value).

Free; clear; devoid; often with of.

Having nothing to carry, emptyhanded; unburdened.

Destitute of effect, sincerity, or sense; said of language.

Unable to satisfy; hollow; vain.

Destitute of reality, or real existence; unsubstantial.

Destitute of, or lacking, sense, knowledge, or courtesy.

Not pregnant; not producing offspring when expected to do so during the breeding season.

Producing nothing; unfruitful.

Hungry.

Lacking between the onset of tasting and the finish.

To make empty; to remove the contents of.

Of a river, duct, etc: to drain or flow toward an ultimate destination.

A container, especially a bottle, whose contents have been used up, leaving it empty.

Source: wiktionary.org