Dim can mean:

• A low level of illumination (lighting); lacking in brightness. It may originate from the phrase "Darker than it was this morning."
• Lack of brightness in the intellectual sense; not smart.
• In most versions of the BASIC programming language, a keyword that declares a variable or array.
• In Visual Basic .NET, a method to declare any variable.
• A minor character in the novel A Clockwork Orange.

The abbreviation dim can refer to:

• Deportivo Independiente Medellín, a colombian football club.
• Dimension, a measure of how many parameters is sufficient to describe an object in mathematics.
• Dimension (vector space), the number of vectors needed to describe the basis in a vector space, in linear algebra.
• Diminished chord, a dissonant chord with a minor third and diminished fifth to the root in music theory.

The abbreviation dIm can mean:

• Some types of a dwarf irregular galaxy; a small galaxy (dwarf galaxy, "d") which contains a not easily classified structure (irregular galaxy, "Im") that is not spiral ("Sm"). It can also be abbreviated "dI" or "dIrr."

DIM may also refer to:

• 3,3'-Diindolylmethane
• Dirección de Inteligencia Militar
• french men's and women's underwear label
• immune support formula from UC Berkeley that is a fund-raiser for cancer research

See also

• Din