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English definition of “summer”

summer

noun [C or U] uk   /ˈsʌm.ər/ us    //
A1 the season of the year between spring and autumn when the weather is warmest, lasting from June to September north of the equator and from December to March south of the equator: We have breakfast on the balcony in (the) summer. Last summer they went to Australia, and two summers ago they went to Brazil. That year it was a hot, dry summer. summer weather/sun a summer/summer's day
See also

summer

verb [I usually + adv/prep] uk   /ˈsʌm.ər/ us    //
to spend the summer in a particular place: If your cactus has summered outdoors, move it into the garage or house when overnight temperatures drop below 65°F.
(Definition of summer from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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