Nikkei Stock Average; Nikkei 225
The leading stock market index for the Tokyo Stock Exchange, often used as a benchmark for Japanese equities.
The Nikkei Stock Average fell sharply today.
日経平均株価は日本の株式市場の代表的な指標です。
The Nikkei Stock Average is a representative index of the Japanese stock market.
日経平均株価 is the full technical name of the stock index, while 日経 alone is used as shorthand for it in finance contexts.
Compound of 日経 (Nikkei, abbreviation of 日本経済新聞) + 平均 (average) + 株価 (stock price).