To optimise a database or database table by physically removing deleted tuples.
To clean (something) with a vacuum cleaner.
To use a vacuum cleaner.
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.
An emptiness in life created by a loss of a person who was close, or of an occupation.
A vacuum cleaner.
An exercise in which one draws their abdomen towards the spine.
A region of space that contains no matter.
A spacetime having tensors of zero magnitude.
To fill with zeros, replacing any previous contents.
To press or dial 0 in order to escape a voicemail recording facility and speak to an operator.
To cut off funding for (a project).
To reduce to zero.