Abstract: The fashionable meanings of words gaodiao(high tone) and didiao(low tone) on the net always express character, dynamic state or referent . It is a result of recategorization. The kind of recategorization has not fully shaped yet and it shows its non-categorized features, The words gaodiao and didiao have distinctive pragmatic features as well.

Key words: web language, gaodiao, didiao, semantics, categorization