What does projection mean?
A projection is an informed estimate of what may happen in the future, often based on current data, trends, or assumptions. Financial projections, for example, predict possible revenue, costs, growth, or market conditions over a specified period. The word also refers to an image or representation displayed by projecting light onto a surface, as in a presentation or cinema. In mathematics, a projection is a representation of a three-dimensional figure on a plane, or a formal process for representing objects or values in another space. Across these uses, the central idea is extending or representing something from one position, surface, or point in time to another. The term is common in business, economics, science, technology, and the arts, where it conveys both calculated forecasting and the act of displaying something beyond its original form.
An estimate or forecast of a future condition, especially a financial or statistical prediction.
"The projections indicate modest growth over the next five years."
Often used in business, economics, planning, and forecasting contexts, where the result is normally based on data or explicit assumptions.
A visible image or representation thrown onto a surface by light, or the process of producing such an image.
"The projection was clearly visible from the back of the auditorium."
Common in presentations, cinema, photography, and visual art.
In mathematics, a geometric representation of a figure or a mapping of one space onto another.
"The projection maps each point in three-dimensional space onto a plane."
This is a technical mathematical usage.
To estimate or forecast a future condition based on present information.
"The analysts project sales to increase significantly next year."
The verb is common in business, economics, and planning contexts.
The plural is commonly used for financial forecasts, statistical estimates, and geometric or visual representations.
"The analysts revised their projections after new data became available."
A projection can be both a prediction of what may happen and an image thrown across a wall, reflecting the word’s roots in throwing or sending forward.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Where does projection come from?
The word comes through Middle English from Old French projection, a borrowing of Latin proiectio, meaning “a throwing or sending forward.” Latin proiectio derives from prōicere, formed from pro- “forward” and iacere “to throw,” the same foundation behind English “project,” “projectile,” and “projector.” The word originally referred to the act of projecting or throwing forward, before acquiring senses connected with forecasts and geometric representation.
Related word forms
How projection is actually used
In business and economics, “projections” usually means numerical forecasts based on stated assumptions. In technical and artistic contexts, it refers to the display or geometric representation of something projected.