| Rank | Abbreviation | Meaning |
|---|
| ***** | HOT LANE. | A separate lane on a highway, usually separated by a barrier, reserved for high occupancy vehicles that have paid a toll (the acronym stands for 'high occupancy toll'). See also HOV lane.
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| **** | HOT AIR BALLOONING. | An increasingly popular form of excursion in which a small number of people are carried aloft in a basket suspended from a large balloon made lighter than the surrounding air by being filled with heat
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| **** | HOT WORK TECHNOL | Hot Working Technology
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| *** | HOT LINE. | Any phone number used to provide fast help or customer service.
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| *** | HOT | Hanging Out Together
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| *** | HOT | Hang On Tank
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| ** | HOT | Hand Over Transmitter
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| ** | HOT | Hands on Throttle
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| * | HOT | Healthy Options Tasmania
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| * | HOT | Hub of Technopreneurs
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| * | HOT | Hands on Transactional
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| * | HOT | High Order Terms
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| * | HOT | Hayward Orientation Team
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| * | HOT | Holy Outrageous Trustworthy
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| * | HOT | Holy Outragous and Trustworthy
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| * | HOT | Higher Order Theories
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| * | HOT | Home Office Theatre
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| * | HOT | House of Thrills
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| * | HOT | Hands On Teaching
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| * | HOT | Hardcore Offshore Tournament
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