Word
airtight
Phoneticsair·tight, stress on the first syllable
US/ˈɛɹˌtaɪt/
UK/ˈeətaɪt/
Definition
adj. describing a situation or plan that is so perfect that it cannot be changed or challenged. It can also describe something that is completely sealed so no air can get in or out.
adj. impermeable to air or gas; also used figuratively to describe a plan or argument that is logically sound and cannot be refuted.
Examples
“The new plan is airtight and will work perfectly.”
“The lawyer presented an airtight case, leaving the jury with no room to doubt the defendant's guilt.”
“The building's windows are sealed with an airtight membrane to prevent heat loss during the winter months, significantly reducing the overall energy consumption of the structure.”
Examples
simple
“The new plan is airtight and will work perfectly.”
contextual
“The lawyer presented an airtight case, leaving the jury with no room to doubt the defendant's guilt.”
complex
“The building's windows are sealed with an airtight membrane to prevent heat loss during the winter months, significantly reducing the overall energy consumption of the structure.”
Real-World Examples
“Store in an airtight container away from light, heat, and moisture.” “Place them in an airtight box for two days.” Etymology
From air + tight.
Etymology adapted from Wiktionary, available under CC BY-SA 4.0.
- Exam level
- CambridgeCambridgeCambridge English QualificationsThe exam suite from Cambridge University Press & Assessment, from A1 Movers up to C2 Proficiency. The benchmark names double as CEFR labels.B2 FirstIELTSIELTSInternational English Language Testing SystemThe 0–9 band test co-owned by the British Council, IDP, and Cambridge. Used for university entry, work, and migration.5.5–6.5TOEFL iBTTOEFL iBTTest of English as a Foreign Language, Internet-Based TestETS's academic English test, the standard route for US university admissions. Scored 0–120, with a 1–6 scale since 2026.1–6 scale: 4.0–4.572–94TOEICTOEICTest of English for International CommunicationETS's workplace English test, big in Japan and Korea. Listening & Reading scores 10–990 and tops out at C1.785–944
- Frequency
- Occasional
- Level
- B2 · Upper Intermediate
- Updated
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englishreference.com/q/airtight