What is the meaning of Vacuum?

A region of space that contains no matter.

The condition of rarefaction, or reduction of pressure below that of the atmosphere, in a vessel, such as the condenser of a steam engine, which is nearly exhausted of air or steam, etc.

Ellipsis of vacuum cleaner.

A spacetime having tensors of zero magnitude.

An emptiness in life created by a loss of a person who was close, or of an occupation.

An exercise in which one draws their abdomen towards the spine.

To clean (something) with a vacuum cleaner.

To use a vacuum cleaner.

To optimise a database or database table by physically removing deleted tuples.

a vacuum (space that contains no matter)

inflection of vacuus:

  1. nominative/accusative/vocative neuter singular
  2. accusative masculine singular

nominative/accusative/vocative neuter singular

accusative masculine singular

an empty space; a void

a vacant place

leisure (freedom from duty)

a vacuum (space that contains no matter)

vacuum

vacuum

Source: wiktionary.org