What is the meaning of Demo?

A demonstration or visual explanation.

A recording of a song meant to demonstrate its overall sound for the purpose of getting it published or recorded more fully.

An example of a product used for demonstration and then sold at a discount.

A march or gathering to make a political protest.

An edition of limited functionality to give the user an example of how the program works.

A non-interactive audiovisual computer program developed by enthusiasts to demonstrate the capabilities of the machine. See demoscene.

A democrat.

A demographic group.

Demolition.

(of a commercial product) designed to test consumers' interest in a retail item prior to purchasing.

To record a demo version of a song, usually not intended for commercial release.

To demonstrate.

To demolish (especially a house or fixture).

demo (brief demonstration)

devil; demon

the Devil

an evil person

a playful kid

demo

deme

Rōmaji transcription of でも

to remove, take away, or subtract

dative/ablative singular of dēmos

a demo (e.g. a music album)

short form of demonstrasjon

the Devil; Satan

a devil; a demon

devil; demon

demo (a software edition of limited functionality)

of limited functionality

demo

Source: wiktionary.org