noun The pointed top of a mountain or hill.
- Snow covered the peak long after the valley had thawed.
- We climbed for hours before reaching the rocky peak at last.
- Clouds hid the highest peak, so we could not see the summit.
noun The highest point or value that something reaches.
- Traffic hits its peak around 8am on weekdays.
- Sales reached their peak just before the holidays.
- The singer's popularity was at its peak when she left the stage.
adj At the highest or best level; maximum.
- The gym is packed during peak hours after work.
- Train tickets cost more during peak times, so we traveled later.
- Peak season at the beach resort means all the hotels are full.
verb To reach the highest point or value before declining.
- His career peaked in his late twenties.
- Cases of the virus peaked in January and then fell steadily.
- The river peaked overnight and then slowly went down again.
