noun “sanction”
 singular sanction, plural sanctions or uncountable
- a penalty or punitive measure intended to make people, organizations, or countries comply with laws or rules 
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 The international community imposed economic sanctions on the nation after it tested nuclear weapons.
 - official approval or permission from an authority 
The project cannot proceed without the sanction of the city council.
 - a penalty; a provision in a law or contract that specifies punitive action 
The new regulation includes sanctions for companies that fail to reduce emissions.
 
verb “sanction”
 infinitive sanction; he sanctions; past tense sanctioned; past part. sanctioned; ger. sanctioning
- to officially approve or permit; to give authority or consent to 
The board sanctioned the merger between the two companies.
 - to impose sanctions or penalties on; to penalize 
The regulatory agency sanctioned the firm for violating safety standards.