事じ情じょう通つう

noun

well-informed person; insider; someone in the know

Refers to a person who is knowledgeable about a particular matter or situation, often implying inside information or familiarity with the background. Can also be used attributively to describe such a person.

See also: 通

• 彼かれはこの業ぎょう界かいの事じ情じょう通つうだ。

  He is an insider in this industry.

• 事じ情じょう通つうの話はなしによると、来らい月げつ大おおきな発はっ表ぴょうがあるらしい。

  According to someone in the know, there will be a big announcement next month.