There are 2 definitions of set off in English:

set off1

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

Definition of set off in:

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Word of the day nous
Pronunciation: naʊs
noun
common sense; practical intelligence

There are 2 definitions of set off in English:

set-off2

Syllabification: set-off
Pronunciation: /ˈsedˌôf/

noun

1An item or amount that is or may be set off against another in the settlement of accounts.
More example sentences
  • Yesterday, he gave a speech to the Economic Club of Washington, in which he said he was ‘open’ to across-the-board budget cuts, and also endorsed finding set-offs to balance hurricane relief spending.
  • Depending upon the circumstances, they could constitute counterbalancing set-offs of credit and debit amounts.
1.1 Law A counterbalancing debt pleaded by the defendant in an action to recover money due.
More example sentences
  • If that is right, then the defendants are entitled to rely on their counterclaim as a set-off.
  • Therefore, I find that the defendants have not proven any amount by way of a set-off or counterclaim.
  • A bond is treated as the equivalent of a bill of exchange or a letter of credit, so that it follows that normally a set-off or counterclaim will not be enough to prevent judgment being given.
1.2 dated A counterbalancing or compensating circumstance or condition: as a set-off against such discussions there had come an improvement in their pecuniary position
2A step or shoulder at which the thickness of part of a building or machine is reduced.
3 Printing The unwanted transference of ink from one printed sheet or page to another before it has set.

Definition of set off in: