neologist
  新語創造者,新語使用者,新教義信奉者
  Ne·ol·o·gist n.
  1. One who introduces new words or new senses of old words into a language.
  Syn: -- verbarian.
  2. An innovator in any doctrine or system of belief, especially in theology; one who introduces or holds doctrines subversive of supernatural or revealed religion; a rationalist, so-called.
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  neologist
       n : a lexicographer of new words and expressions