Children's, Intermediate and Advanced Online English Dictionary & Thesaurus

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Multi-word Results
balloon tire a wide tire with deep walls that is inflated with relatively low air pressure to cushion shocks or facilitate travel on sand.
barrage balloon one of a number of anchored balloons from which wires or nets are suspended to discourage low-flying enemy aircraft from attacking military installations or cities.
hot-air balloon a bag made of thin material that is inflated with hot air, causing it to rise and float in the atmosphere. Large hot-air balloons can be attached to a basket or gondola, and used to transport people or equipment.
pilot balloon a small balloon released to determine wind speed and direction.
trial balloon any tentative action, statement, policy, or program that is released to test public opinion before a final version is put into effect. [2 definitions]