Definition of set off in English:

set off

Begin a journey: they set off together in the small car
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, set forth, sally forth, begin one's journey, leave, depart, embark, set sail
informal hit the road
archaic set forward
See parent entry: set

Definition of set off in:

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Pronunciation: ˈsiːtəʊs
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bearing bristles or setae; bristly