σφραγίζω/sphragizō

This word is an action. It is a verb.

This word can mean to seal something by putting a seal on it. A seal is something put on something else to prevent it from being opened. The seal must be broken in order to open the thing.
This word can mean to securely give someone something.
This word can mean to deliver something safely to its proper place.
This word can be used to talk about someone doing something that is somehow like sealing something.