Related Clues:

• Not even ajar
• Word with ''up'' or ''down''
• Fastened
• Make it close?
• Securely closed
• What some lips may be
• See 2 Down
• Open-and-___ case
• Sealed, say
• Not even cracked
• Closed up tight
• Securely sealed
• Securely fastened
• Stamped as authentic
• Fastened as in S.W.A.L.K.