trapped air

• bubbleAir-filled film sphere
• pocketFabric compartment in clothing
• cushionStuffed fabric for comfort
• cavityEmpty space within
• sealedClosed to prevent entry

pressure · compress · float · buoyancy · foam · aerated · stuffy · stagnant · suffocate · gasp · wheeze · bloat · inflate · puff · blister · airlock · carbonation · fizz

• heat retentioninsulation, thermal mass, R-value, double glazing, thermos
• bubblessoap bubble, air bubble, soap bubbles, champagne bubbles, bubble bath