Basic Details
Word: Airtight
Part of Speech: Adjective
Meaning: Completely sealed so that no air can get in or out.
Synonyms: Sealed, airtight, impermeable
Antonyms: Leaky, porous, open
Idioms and Phrases
- Airtight case: A situation or argument that is completely convincing and cannot be disputed. Example: "The lawyer presented an airtight case that left no doubts in the jury's mind."
- Airtight plan: A plan that is well thought out and unlikely to fail. Example: "We need an airtight plan to ensure our project finishes on time and within budget."
Usage Examples
Example 1: The scientists used an airtight container to keep the samples fresh for their experiments.
Example 2: The chef stored the leftovers in an airtight bag to prevent them from going stale.
Example 3: To make sure the cake stayed moist, she covered it with an airtight lid after baking.
Fun Fact
Did you know that airtight containers were first popularised in the mid-20th century? They are designed to keep food fresh by preventing exposure to air, moisture, and bacteria.
Famous Quote
"An airtight plan is only as good as the people who execute it." - Unknown
Multiple Choice Questions (MCQs)
1. What does "airtight" mean?
a) Not allowing air to pass through
b) Allowing lots of air
c) Filled with air
d) Very large
Answer: a) Not allowing air to pass through
2. Which of these is a synonym of "airtight"?
a) Leaky
b) Sealed
c) Open
d) Free
Answer: b) Sealed
3. Which is an antonym of "airtight"?
a) Impermeable
b) Closed
c) Porous
d) Complete
Answer: c) Porous
4. Which sentence uses "airtight" correctly?
a) The airtight bucket was filled with holes.
b) She bought an airtight lid for the pan.
c) The balloon is an airtight ball.
d) The rain soaked the airtight roof.
Answer: b) She bought an airtight lid for the pan.
5. What does "airtight case" mean?
a) A case that can be opened
b) A case that is sealed
c) A situation that's very convincing
d) A case that is very heavy
Answer: c) A situation that's very convincing
