seal
C1Frequent NGSL-3UK /siːl/US /siːl/
Meaning
noun
an official design or mark, stamped on a document to show that it is real and carries the authority of a particular person or organization
“The letter bore the president's seal.”
verb
to close an envelope, etc. by sticking the edges of the opening together
“Make sure you've signed the cheque before sealing the envelope.”
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