airproof

== English == === Alternative forms === air-proof === Etymology === From air +‎ -proof. === Adjective === airproof (comparative more airproof, superlative most airproof) airtight === Verb === airproof (third-person singular simple present airproofs, present participle airproofing, simple past and past participle airproofed) (transitive) To make airtight.