expression, godan verb (-su)
give a stamp of approval; vouch for
Idiomatic expression meaning to give a strong guarantee or endorsement, as if stamping with a large seal. Often used when someone confidently assures the quality or reliability of a person or thing.
彼の実力なら私が太鼓判を押します。
I can vouch for his ability.
この製品には専門家
Experts have given this product their stamp of approval.