data

Main Entry:: da·ta
Pronunciation:: \ˈdā-tə, ˈda- also ˈdä-\
Function:: noun plural but singular or plural in construction
Usage:: often attributive
Etymology:: Latin, plural of datum
Date:: 1646

1 : factual information (as measurements or statistics) used as a basis for reasoning, discussion, or calculation <the data is plentiful and easily available — H. A. Gleason, Jr.> <comprehensive data on economic growth have been published — N. H. Jacoby> 2 : information output by a sensing device or organ that includes both useful and irrelevant or redundant information and must be processed to be meaningful 3 : information in numerical form that can be digitally transmitted or processed

usage Data leads a life of its own quite independent of datum, of which it was originally the plural. It occurs in two constructions: as a plural noun (like earnings), taking a plural verb and plural modifiers (as these, many, a few) but not cardinal numbers, and serving as a referent for plural pronouns; and as an abstract mass noun (like information), taking a singular verb and singular modifiers (as this, much, little), and being referred to by a singular pronoun. Both constructions are standard. The plural construction is more common in print, perhaps because the house style of some publishers mandates it.

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