1Japan's largest securities exchange where stocks, bonds, and other securities are traded; commonly abbreviated as 'TSE' or 'Tōshō'.
東京証券取引所の株価は今日大きく変動した。
Stock prices at the Tokyo Stock Exchange fluctuated significantly today.
新しい企業が東京証券取引所に上場を申請した。
A new company applied to be listed on the Tokyo Stock Exchange.
東証は午前9時から午後3時まで取引が行われる（昼休みを含む場合がある）。
The TSE conducts trading from 9 a.m. to 3 p.m. (there may be a lunch break).