air-tight   (TTS Sound)

The air-tight has 2 Senses.

• airtight, air-tight
• 気密
• having no weak points; "an airtight defense"; "an airtight argument"
• 弱点がない

• airtight, gas-tight, air-tight
• 気密
• not allowing air or gas to pass in or out
• 空気または気体が出るまたは入ることを防ぐ