X, x

/eks/, n., pl. X's or Xs, x's or xs.

1. the 24th letter of the English alphabet, a consonant.

2. any spoken sound or combination of sounds represented by the letter X or x, as in xylene, box, or exact.

3. something having the shape of an X.

4. a written or printed representation of the letter X or x.

5. a device, as a printer's type, for reproducing the letter X or x.

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