The highest value on record; a record-high or unprecedented peak compared to past records.
今年の売上は過去最高を更新し、前年比で20％増加した。
This year's sales reached a record high, increasing 20% year on year.
気象庁によれば、昨日の最高気温は観測史上過去最高だった。
According to the Meteorological Agency, yesterday's high temperature was the highest on record.
株価が過去最高をつけたため、多くの投資家が注目している。
Because stock prices hit a record high, many investors are paying attention.