sealed

US /siːld/
UK /siːld/
1.

niêm phong

fasten or close securely.

:
he folded it, sealed the envelope, and walked to the mailbox
2.

niêm phong

apply a nonporous coating to (a surface) to make it impervious.

:
seal the finish with a satin varnish
1.

niêm phong