Air-tight

Adjective
1. having no weak points; "an airtight defense"; "an airtight argument"
(synonym) airtight
(similar) invulnerable
2. not allowing air or gas to pass in or out
(synonym) airtight, gas-tight
(similar) tight

(n.)
A stove the draft of which can be almost entirely shut off.
  

(a.)
So tight as to be impermeable to air; as, an air-tight cylinder.
  

adj.
منہ بند , خامي ہوئي

air-tight /'eə tait/ (air-proof) /'eəpru:f/
proof)/'eəpru:f/ danh từ kín gió, kín hơi
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A TENUTA D'ARIA. ERMETICO. IMPERMEABILE ALL'ARIA, INATTACCABILE