peak¹ /pēk/

1. A point
2. The pointed end or highest point of anything
3. The top of a mountain, esp when sharp
4. A summit
5. The highest point of a curve, etc on a graph
6. Any point or period of maximum activity, intensity, performance, skill, etc
7. A sharp projection
8. The projecting front of a cap or (formerly) of a widow's hood
9. A projecting point of hair on the forehead
10. A pointed beard
11. The upper outer corner of a sail extended by a gaff or yard (nautical)
12. The upper end of a gaff (nautical)

1. Maximum
2. Of a maximum

1. To rise in a peak
2. To reach the height of one's powers, popularity, etc
3. (of prices, etc) to reach a highest point or level (sometimes with out)

To tilt up

peaked adjective

Having a peak or peaks

peakˈy adjective

1. Having a peak or peaks
2. Like a peak

peak load noun

The maximum instantaneous demand of electricity, or load on a power-station (cf base-load under base¹)

off-peak

At, of or relating to a regular period of relatively low customer demand, eg for electricity or rail travel

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