GIS

computer system that can store manipulate and display geographically referenced information

A geographic information system (GIS) (also known as geographical information system, particularly in the UK, and geomatics in Canada) is a system for capturing, storing, analyzing and managing data and associated attributes which are spatially referenced to the earth. In the strictest sense, it is a computer system capable of integrating, storing, editing, analyzing, sharing, and displaying geographically-referenced information. In a more generic sense, GIS is a tool that allows users to create interactive queries (user created searches), analyze the spatial information, edit data, maps, and present the results of all these operations. Geographic information science is the science underlying the geographic concepts, applications and systems, taught in degree and GIS Certificate programs at many universities.
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n. G sharp (Music)

n. chalk, object which is made of limestone (or something which resembles limestone), and is used for writing on blackboards or slates

n. guess, conjecture; g sharp

v. guess, speculate