Definition

The state or quality of being completely sealed so that no air can enter or escape.

Example

The airtightness of the container ensures that the food stays fresh for a longer time.

Conversation

Have you heard about the new container design that focuses on airtightness?

Yeah, I read that it keeps food fresh much longer.

Exactly! It's impressive how airtightness can make such a difference.

For sure, I might need to get some for my kitchen.

Synonyms & Antonyms

Root Explanation

Airtightness → It is formed from "air" (from Old English "aer", meaning the invisible gaseous substance surrounding the earth) and "tight" (from Old English "tīht", meaning firmly held or secure) combined with the suffix "-ness" (meaning the state or quality of). The word "airtightness" refers to the quality of being secure against the passage of air.

Memory Tip

Think of the word 'air' as the invisible substance around us and 'tight' as being firmly held. This helps you remember that 'airtightness' means the quality of being secure against air.

Visually Confused Words