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English definition of “watershed”

watershed

noun uk   /ˈwɔː.tə.ʃed/ us    /ˈwɑː.t̬ɚ-/

watershed noun (BIG CHANGE)

[S] an event or period that is important because it represents a big change in how people do or think about something: The year 1969 was a watershed in her life - she changed her career and changed her partner.

watershed noun (HIGH GROUND)

[C] specialized geography an area of high ground from which water flows down to a river

watershed noun (TELEVISION)

the watershed [S] UK in Britain, the time in the evening, usually 9 p.m., when television programmes that are not suitable for children may start to be shown
(Definition of watershed from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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