What is the meaning of Retention?

The act of retaining or something retained.

The act or power of remembering things.

Memory; what is retained in the mind.

The involuntary withholding of urine and faeces.

The length of time a patient remains in treatment.

That which contains something, as a tablet; a means of preserving impressions.

The act of withholding; restraint; reserve.

A place of custody or confinement.

The right to withhold a debt, or of retaining property until a debt due to the person claiming the right is duly paid; a lien.

The portion of a potential damage that must be paid for by the holder of an insurance policy.

Source: wiktionary.org