A high point or level, especially in terms of achievement or success. Reaching the finals was the high of his career.
A state of euphoria or exhilaration, often induced by drugs or alcohol. He felt a sudden high after the adrenaline rush from the roller coaster.
A high-pressure weather system. The high brought clear skies and warm temperatures to the region.
The highest temperature recorded or forecast for a given period. Today's high is expected to reach 95 degrees Fahrenheit.