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1D

From Wiktionary, the free dictionary

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See also: 1-D, 1d, and 1/d

English

Adjective

1D (not comparable)

  1. Abbreviation of one-dimensional.
    Coordinate terms: 2D, 3D, 4D

Noun

1D (plural 1Ds)

  1. (American football) Initialism of first down.

Proper noun

1D

  1. The British boy band One Direction.

Derived terms

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