seal

A pinniped (Pinnipedia), particularly an earless seal (true seal) or eared seal.

“The seals in the harbor looked better than they smelled.”

A bearing representing a creature something like a walrus.

To hunt seals.

“They're organizing a protest against sealing.”

A stamp used to impress a design on a soft substance such as wax.

An impression of such stamp on wax, paper or other material used for sealing.

A design or insignia usually associated with an organization or an official role.

“The front of the podium bore the presidential seal.”

Anything that secures or authenticates.

Something which will be visibly damaged if a covering or container is opened, and which may or may not bear an official design.

“The result was declared invalid, as the seal on the meter had been broken.”

Confirmation or approval, or an indication of this.

“Her clothes always had her mom's seal of approval.”

Something designed to prevent liquids or gases from leaking through a joint.

“The canister is leaking. I think the main seal needs to be replaced.”

A tight closure, secure against leakage.

“Close the lid tightly to get a good seal.”

A chakra.

To place a seal on (a document).

To mark with a stamp, as an evidence of standard exactness, legal size, or merchantable quality.

“to seal silverware”

To fasten (something) so that it cannot be opened without visible damage.

“The cover is sealed. If anyone tries to open it, we'll know about it.”

To prevent people or vehicles from crossing (something).

“The border has been sealed until the fugitives are found.”

To close securely to prevent leakage.

“I've sealed the bottle to keep the contents fresh.”

To place in a sealed container.

“I've sealed the documents in this envelope.”

To place a notation of one's next move in a sealed envelope to be opened after an adjournment.

“After thinking for half an hour, the champion sealed his move.”

To guarantee.

“The last-minute goal sealed United’s win.”

To fix, as a piece of iron in a wall, with cement or plaster, etc.

To close by means of a seal.

“to seal a drainpipe with water”

To confirm or set apart as a second or additional wife.

To tie up animals (especially cattle) in their stalls.