The physical items to be delivered for a project. This may include organization attributes, reports and plans, as well as physical products or objects.
(Wideman Comparative Glossary of Common Project Management Terms v2.1)
Other Definitions
Any tangible outcome that is produced by the project. These can be documents, plans, computer systems, buildings, aircraft, etc. Internal deliverables are produced as a consequence of executing the project, and are usually only needed by the project team. External deliverables are those that are created for customers and stakeholders.
(Wideman Comparative Glossary of Common Project Management Terms v2.1)