Definition of set in in English:

set in

phrasal verb

  • (of something unpleasant or unwelcome) begin and seem likely to continue.

    ‘tables should be treated with preservative before the bad weather sets in’
    • ‘As cooler weather sets in over autumn and winter the plants die down and become dormant.’
    • ‘There must be a commitment to continuous improvement, otherwise complacency sets in.’
    • ‘Surgeons have to remove damaged skin quickly and replace it to prevent infection from setting in.’
    • ‘According to his research, people feel that middle age begins at 49 and old age sets in at 65.’
    • ‘Before the cold weather sets in, have your central heating serviced to ensure you keep your energy bills down.’
    • ‘If the battery is healthy, it is a good idea to check the terminals and smear them with petroleum jelly to stop corrosion setting in.’
    • ‘It takes a very focused mind indeed to do this without listener boredom setting in.’
    • ‘As the boats were being lowered the Tuscania took on a list to starboard and panic began to set in.’
    • ‘In the past she has shown she is not easily cowed, but she said a deep fatigue was setting in.’
    • ‘But to get the real benefits of cheaper gas and electricity as the cold weather sets in, it is best to act now.’
    begin, start, arrive, come, develop, become established, get under way, settle in
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