Seal up Meaning in English
expression
Definition
To close something completely so that nothing can enter or escape, usually by making it airtight or watertight.
Usage & Nuances
'Seal up' is more emphatic than 'seal' alone, stressing total closure. Common with containers, doors, windows, or envelopes. Frequently used with objects requiring protection from air, moisture, or contamination. Informal; not typically used in formal writing.
Example Sentences
Please seal up the jar after you use it.
basic
Make sure to seal up the bag so the food stays fresh.
basic
He used tape to seal up the box before shipping it.
basic
The windows were sealed up to keep out the cold during winter.
natural
We had to seal up the cracks in the wall to stop water from getting in.
natural
After the renovations, they sealed up the old doorway so nobody could use it anymore.
natural