Definition of set off in English:

set off

  • Begin a journey.
    More example sentences
    • Drivers are being advised to check road conditions with the Highways Agency before setting off on journeys.
    • The notion that one can set off on a journey and arrive at the promised time is regarded as a joke.
    • About half an hour after setting off a blizzard descended, I couldn't see five yards in front of me.
    Synonyms
    set out, start out, sally forth, leave, depart, embark, set sail
    informal hit the road
See parent entry: set

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Word of the day coloratura
Pronunciation: ˌkɒlərəˈtjʊərə
noun
elaborate ornamentation of a vocal melody