What Does โSeal sth upโ Mean?
โSeal sth upโ means to close something completely, often to prevent air, water, or other substances from getting in or out.
Introduction
The phrasal verb โSeal sth upโ is commonly used to describe the action of closing or fastening something tightly. This could be a letter, a container, or a crack. Understanding the Seal sth up meaning helps learners use it naturally in everyday English. It is often related to protecting or preserving items by making sure nothing can enter or escape. Whether you are sealing an envelope or sealing a bag of food, this phrase is practical and useful in many situations.
Quick Info Box
- Phrasal verb: Seal something up
- Type: Transitive
- Level: B1 (Intermediate)
- Short meaning: To close something completely to protect or preserve it
Structure (Grammar Rules)
โSeal sth upโ is a separable phrasal verb. This means you can place the object between โsealโ and โupโ or after the entire verb.
- Seal the envelope up.
- Seal up the envelope.
Both structures are correct. The object (sth = something) is always necessary because โseal upโ is transitive.
How to Use Seal sth up?
Use โSeal sth upโ when you want to describe closing something tightly to protect it. It is often used with containers, packages, or openings. You can use it in past, present, and future tenses by changing the verb โsealโ accordingly.
Examples:
- Seal the box up before shipping.
- We need to seal up the windows before the storm.
Examples
Imagine you have a letter to send. You need to close it so nothing falls out. You can say, โI will seal the letter up.โ
- She sealed the package up tightly to keep the contents safe.
- Donโt forget to seal up the jar after using it.
- The workers sealed the cracks up to stop the water from leaking in.
- He sealed up the envelope with glue before mailing it.
- They sealed the bags up to keep the food fresh.
Here is how to use Seal sth up in a sentence: โPlease seal the box up before sending it.โ
Common Mistakes
People sometimes forget the object or place it incorrectly.
- Incorrect: โSeal up.โ
- Correct: โSeal the envelope up.โ
- Incorrect: โSeal up the.โ
- Correct: โSeal up the package.โ
Remember, โSeal sth upโ always needs an object to be complete.
Differences / Synonyms
Similar phrasal verbs include โclose up,โ โshut up,โ and โwrap up.โ
- Close up: To close completely, often used for shops or wounds.
- Shut up: To close, but also used informally to tell someone to be quiet.
- Wrap up: To cover something completely with paper or cloth.
โSeal sth upโ focuses on making something airtight or watertight, which is different from simply closing or wrapping.
Common Collocations
We often use โSeal sth upโ with objects that need protection or closure.
- Seal the envelope up โ close a letter.
- Seal the package up โ close a parcel tightly.
- Seal the jar up โ close a container to keep food fresh.
- Seal the bag up โ close a bag to keep contents safe.
- Seal the crack up โ close openings to prevent leaks.
Related Phrasal Verbs
Here are related phrasal verbs of seal sth up:
Real-life Dialogue
Here is a conversation between two friends preparing for a trip:
Anna: Did you seal the food bags up before packing?
Ben: Yes, I sealed them up so nothing spills in the suitcase.
Anna: Great! That will keep everything fresh.
Practice
Fill in the blanks with the correct form of โseal sth up.โ
- Please ________ the box ________ before sending it.
- She ________ the envelope ________ with glue.
- We need to ________ the windows ________ before the rain starts.
FAQ
- Q: Can I say โseal upโ without an object?
A: No, โseal upโ needs an object to be complete. - Q: Is โseal sth upโ formal or informal?
A: It is neutral and can be used in both formal and informal contexts. - Q: Can โseal sth upโ be used in the passive voice?
A: Yes, for example, โThe envelope was sealed up.โ - Q: What is the difference between โseal upโ and โclose upโ?
A: โSeal upโ means to close tightly to protect, while โclose upโ means to shut completely but not necessarily airtight. - Q: Can I use โseal sth upโ for digital files?
A: No, it is usually used for physical objects.
