What Does “Seal sth in” Mean?
“Seal sth in” means to close something tightly so that air, liquid, or other substances cannot escape or enter.
Introduction
The phrasal verb “seal sth in” is commonly used when talking about closing containers, packages, or spaces securely. This action helps preserve freshness, prevent leaks, or keep something safe inside. Understanding the Seal sth in meaning is useful in everyday situations like cooking, storage, or even in technical contexts. Knowing how to use this phrase correctly can improve your communication skills and make your English sound more natural.
Quick Info Box
- Phrasal verb: seal something in
- Type: Transitive
- Level: B1
- Short meaning: Close tightly to keep something inside
Structure (Grammar Rules)
“Seal sth in” is a separable phrasal verb. You can place the object between “seal” and “in” or after the entire phrase.
- seal + object + in (e.g., seal the envelope in)
- seal in + object (e.g., seal in the envelope)
Both forms are correct, but the first is more common for shorter objects.
How to Use Seal sth in?
Use “seal sth in” when you want to describe closing or covering something tightly to keep air, liquid, or other things from getting in or out. It is often used with food, documents, or containers.
Example: “Make sure to seal the jar in tightly to keep the food fresh.”
Examples
Here are some natural sentences using “seal sth in”:
- She sealed the letter in the envelope before mailing it.
- The factory seals the products in airtight packages to preserve quality.
- After cooking, always seal the leftovers in containers to keep them fresh.
- They sealed the chemicals in special containers for safe transport.
- Seal sth in in a sentence: “He sealed the documents in a safe box.”
Common Mistakes
People sometimes confuse “seal sth in” with other similar phrases or use it incorrectly.
- Incorrect: “Seal in the envelope the letter.”
- Correct: “Seal the letter in the envelope.”
- Incorrect: “I sealed in the jar the food.”
- Correct: “I sealed the food in the jar.”
Remember to place the object correctly between “seal” and “in” or after the phrase.
Differences / Synonyms
Similar phrasal verbs include “close up,” “lock in,” and “wrap up.” However, these have different uses.
- Seal sth in focuses on making something airtight or secure.
- Close up means to shut something but not necessarily airtight.
- Lock in implies securing with a lock, often for safety.
- Wrap up means covering something, usually with paper or cloth.
Use “seal sth in” when the focus is on keeping contents inside safe from air or leaks.
Common Collocations
Here are common objects used with “seal sth in”:
- Seal food in – keep food fresh
- Seal documents in – protect papers
- Seal liquids in – prevent spills
- Seal air in – stop air from escaping
- Seal a container in – close a box or jar tightly
Related Phrasal Verbs
Here are related phrasal verbs of seal sth in:
Real-life Dialogue
Here is a short conversation using “seal sth in”:
Anna: Did you seal the food in the container?
Ben: Yes, I sealed it in tightly so it won’t spoil.
Anna: Great! That will keep it fresh for tomorrow.
Practice
Try to complete the sentence with “seal” and “in”:
- I always ________ my sandwiches ________ plastic wrap to keep them fresh.
- Make sure to ________ the documents ________ the folder.
- They ________ the chemicals ________ special containers for safety.
Answers: seal … in
FAQ
- Q: Can “seal sth in” be used with people?
A: Usually, it is used with objects, not people. - Q: Is “seal sth in” separable?
A: Yes, you can separate the verb and particle with the object. - Q: What is the difference between “seal in” and “lock in”?
A: “Seal in” means to close tightly to keep air/liquid out. “Lock in” means to secure with a lock. - Q: Can “seal sth in” be used in non-physical contexts?
A: It is mostly physical but can be used metaphorically to mean keeping feelings or information contained. - Q: What level of English is “seal sth in”?
A: It is suitable for intermediate learners (B1 level).
