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Meaning of “peak” in the English Dictionary

"peak" in British English

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peaknoun [C]

uk   /piːk/  us   /piːk/
  • peak noun [C] (HIGHEST POINT)

B2 the highest, strongest, or best point, value, or level of skill: Prices reach a peak during August. Beat the egg whites until they are stiff enough to form firm peaks. We saw a victory by an athlete at the very peak of her fitness and career.

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  • peak noun [C] (MOUNTAIN)

B1 the pointed top of a mountain, or the mountain itself: It is one of the most difficult peaks to climb.

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  • peak noun [C] (HAT PART)

mainly UK (US usually visor) the flat curved part of a cap that goes above the eyes of the person who is wearing it

peakadjective [before noun]

uk   /piːk/  us   /piːk/
Peak times are the times when most people are using or doing something: Traffic congestion is really bad at peak periods (= when it is busiest). It is most expensive to advertise at peak viewing times (= those with the most people watching). Don't go there in the peak (= busiest) season - it'll be hot and crowded.
Peak levels or rates are when they are at their highest: peak rate electricity
mainly UK often humorous used to describe something that has become so popular and common that it is no longer fashionable or people start to dislike it: I think we've reached peak beard (= beards were fashionable, but now too many people have them).

peakverb [I]

uk   /piːk/  us   /piːk/
(Definition of peak from the Cambridge Advanced Learner’s Dictionary & Thesaurus © Cambridge University Press)

"peak" in American English

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peakverb [I]

 us   /pik/
  • peak verb [I] (REACH HIGHEST POINT)

to reach the highest point, value, or level: Official figures show unemployment peaked in November.
peak
adjective [not gradable]  us   /pik/
During the peak season, the population swells with over 50,000 tourists.

peaknoun [C]

 us   /pik/
  • peak noun [C] (MOUNTAIN TOP)

the pointed top of a mountain, or the mountain itself
(Definition of peak from the Cambridge Academic Content Dictionary © Cambridge University Press)

"peak" in Business English

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peaknoun [C]

uk   us   /piːk/
a period during which something reaches its highest level, price, rate, etc.: At its peak, the company was valued at £1.5 billion. Several internet service providers tested in the evening peak failed to deliver the new target for high-speed internet.be above/below the peak of sth The shares have started to recover but are still far below their 12-month peak.hit/reach/rise to a peak Investors were looking beyond the UK market because they feared it might have reached a peak. all-time/record/highest peak Markets are subject to strong peaks and troughs due to economic cycles.
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peakadjective [before noun]

uk   us   /piːk/
relating to the highest level, price, rate, etc. that something reaches: The comparison site provides information on peak and off-peak rates across all the major mobile networks. Service providers keep spare capacity to meet peak demand. peak efficiency/performance
relating to a period of time during which more people are using a service or system than during any other period: The new facility could increase the number of packages shipped to 30,000 from 10,000 during the peak holiday season.peak hours/periods/times The Underground often operates a crowd-control system at peak periods.
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peakverb [I]

uk   us   /piːk/ (also peak out)
to reach the highest level, price, rate, etc.: Official figures show that unemployment peaked in November.peak (out) at sth There was growing belief in the City that base rates may have peaked at 4.75%. Despite talk of the market peaking out, investors are still buying rather than selling.
(Definition of peak from the Cambridge Business English Dictionary © Cambridge University Press)
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“peak” in Business English

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