Thin pieces of material used to close off an opening or to keep something closed.
Sealings are important for keeping things safe and protected.
Examples:
She used sealings to close the envelope.
The sealings on the window keep the cold air out.
I found some sealings to cover the hole in the wall.
The sealings on the jar were so tight, I couldn't open it!
The astronaut's suit has special sealings to keep the air in.
The treasure chest was hidden behind a door with ancient sealings.