Nikkei Stock Average; Nikkei 225
Abbreviation of 日経平均株価. Used in financial news and stock market contexts.
See also: 日経平均株価
The Nikkei Stock Average temporarily fell by more than 300 yen.
今日の日経平均は小幅高で引けた。
The Nikkei 225 closed slightly higher today.
ダウ refers to the U.S. Dow Jones Industrial Average, whereas 日経平均 is Japan's own stock market index, so the two are often mentioned together but must not be mixed up.
Abbreviation of 日経平均株価 (Nikkei Stock Average). 日経 is from 日本経済新聞 (Nihon Keizai Shimbun).