Longman Dictionary of Contemporary English homepage

Date: 1500-1600
Origin: Perhaps from pike 'mountain, hill' (13-21 centuries), probably from a Scandinavian language

peak

1 noun
     
peak1 W3 [countable]
1

time

[usually singular] the time when something or someone is best, greatest, highest, most successful etc
at something's peak
The British Empire was at its peak in the mid 19th century.
Sales this month have reached a new peak.
Most athletes reach their peak in their mid 20s.
He's past his peak as a tennis player.
Oil production is down from its peak of two years ago.
at the peak of something
Hotel rooms are difficult to find at the peak of the holiday season.
the peaks and troughs of the US economy (=high and low points)
2

mountain

a) DNSG the sharply pointed top of a mountain:
snow-capped mountain peaks
jagged peaks
b) DNSG a mountain [↪ summit]:
Mount McKinley is Alaska's highest peak.
3

point

CF a part that forms a point above a surface or at the top of something:
Whisk the egg whites until they form stiff peaks.
4

hat

DCC especially British English the flat curved part of a cap that sticks out in front above your eyes [= visor American English]

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