u

Definitions

General English

  • noun the twenty-first letter of the alphabet, between T and V
  • adjective sensible, enjoyable or of a high standard
  • adjective skilful at doing something
  • noun advantage or benefit

Electronics

  • (written as U)
    Within the YUV color model, one of the two color-difference signals. The other is V (3).
  • chemical symbol foruranium
    (written as U)
  • symbol forpotential difference
    (written as U)
  • symbol forrack unit
    (written as U)
  • The difference in potential between two points, especially those of a circuit. It is the work required to move a unit charge between these points. Its abbreviation is PD, and its symbol is U, or ΔV. When expressed in volts, as it usually is, also called voltage. Also called electric potential difference.
  • In the context of rack-mounting, a unit of vertical mounting space equal to 1.75 in, or 4.445 cm. Its abbreviation is RU, or U.

Media Studies

  • noun
    (written as U)
    in the UK, a film classification for films that can be seen by everybody, regardless of age

Agriculture

  • symbol forGood
    (written as U)

Banking

  • noun an item which is made and is for sale

Origin

  • Good is such a general, all-embracing word for anything regarded in a positive light that it perhaps comes as something of a surprise that it is not an ancient primary term distributed throughout the Indo-European languages. It is a strictly Germanic word (German has gut, Dutch goed, and Swedish and Danish god), and it goes back to prehistoric Germanic *gath- ‘bring together’ (source of English gather and together); the progression of senses appears to be ‘brought together, united’, ‘fitting, suitable’, ‘pleasing’, and ‘good’. See also (best).
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