This will cause it to seal tightly against the door.

At the time, the building had been kept "tightly sealed" since 1957.

Place in a container sealed tightly and store away from the light.

One was tightly sealed against Earth's air and half full of an incredibly fine dust.

Within an hour or two, Kano would be tightly sealed.

Keep such products tightly sealed and in a well-ventilated area.

The radioactive material is sealed tightly to make it hard to remove.

It was tightly sealed and no seawater had gotten inside.

There was a small window to the right, tightly sealed with both blinds and curtains.

For most of its history, North Korea has been tightly sealed.