Meaning & Definition of word "Seal"

Seal

/siːl/

1. A marine mammal with flippers, known for its playful nature and ability to swim.
- Example: The seal basked on the rocky shore, soaking up the sun.
2. A device or substance that is used to join two surfaces together to prevent leakage.
- Example: We applied a seal to the joint to keep the water from leaking.
3. An official mark or emblem used to authenticate documents.
- Example: The document bore the royal seal, confirming its legitimacy.

1. To close securely or make airtight.
- Example: Make sure to seal the envelope before mailing it.
2. To fasten or secure something to prevent access or movement.
- Example: They decided to seal the entrance to the old building to deter trespassers.
3. To confirm or finalize something in a formal way.
- Example: The agreement was sealed with a handshake.

Middle English 'sele', from Old English 'seolh', related to Dutch 'zeehond' and German 'Seehund'.

seal the deal:

To finalize an agreement.

kiss of death seal:

A gesture that brings bad luck or harm.

put a seal on it:

To finalize something or make it official.

sealant:

A substance used to block the passage of fluids through surfaces.

sealed:

Closed securely so that nothing can enter or exit.

sealing:

The process of closing something securely.

Meaning: To approve or validate something.

Example Sentence: He sealed that plan for the project.

Meaning: To keep a secret hidden.

Example Sentence: I sealed my lips about the surprise party.