Synonyms of 'in favour of'
▷ See favour
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If something or someone is behind you, they support you and help you.
He had the state's judicial power behind him.
You use for after words such as 'argue', 'case', 'evidence', or 'vote' in order to introduce the thing that is being supported or proved.
The case for nuclear power is impressive.
in favour of
in support of
Thesaurus for in favour of from the Collins English Thesaurus
If one thing is rejected in favour of another, the second thing is done or chosen instead of the first.