2D or II-D may refer to:

Look up 2d in Wiktionary, the free dictionary.

• Something with two dimensions, e.g. height and width
• 2D geometric model
• 2D computer graphics, the computer-based generation of images in two geometric dimensions
• 2D (Gorillaz), a fictional member of the virtual band Gorillaz
• Oflag II-D
• Stalag II-D
• Transcription Factor II D

and also :

• Barcodes and 2D barcodes a.k.a. 2D codes
• Two Dickinson Street Co-op, a student dining cooperative at Princeton University
• Traditional animation

Most graphs are drawn in two dimensions. The axes are known as the x-axis (horizontal) and the y-axis (vertical).

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