What context can I use each word in?
Learn when and how to use these words with these examples!
leakproof
Example
This water bottle is leakproof, so you don't have to worry about it spilling in your bag. [leakproof: adjective]
Example
The company guarantees that their containers are completely leakproof. [leakproof: adjective]
Example
The plumber fixed the leakproof seal on the pipe to prevent any further leakage. [leakproof: noun]
airtight
Example
The coffee canister has an airtight seal to keep the beans fresh. [airtight: adjective]
Example
The freezer bags are airtight to prevent freezer burn. [airtight: adjective]
Example
The laboratory requires an airtight environment for certain experiments. [airtight: noun]
Good things to know
Which word is more common?
Airtight is more commonly used than leakproof in everyday language. Airtight is versatile and covers a wide range of contexts, while leakproof is less common and refers to a specific type of sealing.
What’s the difference in the tone of formality between leakproof and airtight?
Both leakproof and airtight are neutral in terms of formality and can be used in both formal and informal contexts.