Capital vs. capitol

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[Yes, Virginia, There is a Santa Claus|Yes, Virginia, there is a difference].

The word [capitol] has a very specific [definition|meaning]. A capitol is the [building] in which a state [legislative] body meets, or in which the functions of state [government] are carried out. When capitalized, the word [U.S. Capitol|Capitol] refers only to the [Washington, D.C.|Washington, DC] building in which [Congress] meets. This probably also holds true outside the [United States], but what is important is that these definitions refer to buildings. <P> The word [capital], on the other hand, has many meanings. When used as a [noun], it may be the [city] in which a government's capitol is located, or any city that is the [center] of a specific activity or industry (the financial capital of the world). Capital may also refer to [money], often that used to produce additional wealth, to the uppermost part of a supporting [column], and to an [Majuscule|uppercase] letter. If the word capital is used as an adjective, it may relate to something of high [quality] (a capital idea) or [importance] (a capital mistake), or to something involving the [death penalty] (capital punishment). <P> The two are not, in fact, [interchangeable] - while confusing the two is a [common mistake], it is still [incorrect]. While any sufficiently frequent [misuse] of [language] may eventually become accepted, it still holds true that capitol refers to buildings and capital is for any other use.