Definition

(to give something) a stamp of approval: (to give something) a green light, a thumbs up, permission, consent; (to give) agreement to (something) idiom
You need Mr. Delavigne's stamp of approval before you can change the company logo.
  • "While I agree with you that it would be nice to work with manufacturers who have the OILS stamp of approval, it is simply not cost-effective to switch subcontractors at this point."

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