关键词: 语义Web, 语义, 概念, 本体, 外指意义

Abstract: The linguistic meaning is the concept and the reference in human brain.As the reference can’t be simulated out presently in cyberspace，it is a realistic and feasible choice to admit the definition of the linguistic meaning nearly being the concept.The linguistic meaning is the concepts composing the ontology placed inside computer.The semantic Web is a kind of abstract information set，moreover the information is located by URI，written with XML，and transmitted on some protocols.The importance of the ontology is derived from the relationships of the concepts，that is，some correlative concepts and their attributes can be achieved if only starting from a concept，so that the semantic inference is carried out.The two essential tasks for constructing the semantic Web are to mark the all contents of the information with the concept，and to build the concept system viz.ontology within computer.

Key words: semantic Web, linguistic meaning, concept, ontology, reference