4.0 may refer to:
- 4 (disambiguation)
- 4.0 (Mónica Naranjo album), a 2014 compilation album by Spanish recording singer-songwriter Mónica Naranjo
- LP Underground 4.0, a 2004 CD and digital download set by Linkin Park Underground
- Live Free or Die Hard, a 2007 American action thriller film (released as Die Hard 4.0 outside North America)
See also edit
This disambiguation page lists articles associated with the same number.
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