Definition of "Capital" :

noun: the upper part of a column that supports the entablature

noun: one of the large alphabetic characters used as the first letter in writing or printing proper names and sometimes for emphasis

"Printers once kept the type for capitals and for small letters in separate cases; capitals were kept in the upper half of the type case and so became known as upper-case letters."

noun: a book written by Karl Marx (1867) describing his economic theories

noun: the federal government of the United States

noun: a seat of government

noun: a center that is associated more than any other with some activity or product

"The crime capital of Italy."

noun: wealth in the form of money or property owned by a person or business and human resources of economic value

noun: assets available for use in the production of further assets

adjective: uppercase

"Capital A."

adjective: of primary importance

"Our capital concern was to avoid defeat."

adjective: first-rate

"A capital fellow."