1. closed tightly so that air or liquid cannot get in or out
2. kept secret or confidential

1. past tense and past participle of seal

Examples

• The sealed envelope contained important documents.
• Make sure the jar is sealed properly to keep the food fresh.
• The police found sealed packages in the suspect’s car.
• Her lips were sealed about the surprise party.
• He sealed the letter with wax.
• The deal was sealed with a handshake.
• The sealed records cannot be accessed by the public.