Projection can be any of:

• The display of an image by devices such as:
  • Movie projector
  • Video projector
  • Overhead projector
  • Slide projector

• Map projection, reduces our three-dimensional planet to a flat map (Geography)
• Graphical projection, the production of a two-dimensional image of a higher-dimensional object
  • Orthographic projection, including:
    • Plan, or floor plan view
    • Elevation, usually a 'head-on' view of an exterior
    • Section, a cutaway view of the interior
    • Axonometric projection, including:
      • Isometric projection
      • Dimetric projection
      • Trimetric projection
  • Oblique projection, and
  • Perspective projection

• In chemistry, any one of:
  • Fischer projection
  • Haworth projection
  • Newman projection

• Projection (mathematics), any of several different types of functions, mappings, operations, or transformations
  • 3D projection
  • Projection (relational algebra)
  • Projection (linear algebra)
  • Vector projection
  • Projective redirects here. Projective geometry is a non-Euclidean geometry that involves projective spaces. In another direction, projective modules and projective objects generalize free modules
• Projections (Voyager episode), an episode of the television series Star Trek: Voyager
• Power projection, the capacity of a state to implement policy by means of force, or the threat thereof, in an area distant from its own territory
• Psychological projection, or "Freudian projection", a defense mechanism in which one attributes to others, one?s own unacceptable or unwanted thoughts or emotions
• a forecasting of future developments based on current statistics and trends

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