rubber stamp

Từ điển WordNet v3.1 - WordNet Dictionary

noun

1. a stamp (usually made of rubber) for imprinting a mark or design by hand
• Syn:
handstamp
• Derivationally related forms:
handstamp (for: handstamp)
• Hypernyms:
seal, stamp
2. routine authorization of an action without questions
• Hypernyms:
authorization, authorisation, empowerment