sort by Rank | Alpha
| Possible Meanings | Rank |
| Health Technology Advisory | **** |
| High Technology Aerospace | **** |
| Hospitality and Tourism Association | **** |
| Hindu Temple of Atlanta | **** |
| Health Technologies Assessment | **** |
| Hutchison Telecoms Australia | **** |
| Head Teachers Association | **** |
| Historical Text Archive | **** |
| Healthcare Technology Assessment | **** |
| High Tech Academy | **** |
| Health Technology Assessments | **** |
| Hunters and Trappers Association | **** |
| hard time alliance | **** |
| Hydrogen Technology Applications | **** |
| Health Training Australia | *** |
| Home Team Advantage | *** |
| Honda Trading America | *** |
| Home Team Academy | *** |
| huron tourism association | *** |
| Hungarian Telecottage Association | *** |
| Hapoel Tel Aviv | *** |
| Horticultural Trade Association | *** |
| Hospitality and Tourism Alliance | *** |
| Highway Toll Administration | *** |
| Heartland Tree Alliance | *** |
| High Technologies America | *** |
| HSA-HSZ Thailand | *** |
| Heteroduplex Tracking Assays | *** |
| Hospitality Tourism Alliance | *** |
| Healthcare Technology Alliance | *** |
| Haute Tension A | *** |
| Hatchuel Tabernik Associates | *** |
| hutchison telecommunications australia | *** |
| Hedge to Arrive | *** |
| Hospitality Training Association | *** |
| Haigh Todd Associates | *** |
| Health Technology Assesment | *** |
| Humboldt Transit Authority | *** |
| Harris Tweed Authority | *** |
| Honeycomb Tube Architecture | *** |
| History Teachers Association | *** |
| Health Telematics Applications | *** |
| Hindustan Thomson Associates | *** |
| Handmade Tile Association | ** |
| competition/heteroduplex tracking assay | ** |
| heteroduplex tracking analysis | ** |
| heteroduplex tracking assay | ** |
| heterophile transplant antigen | ** |
| heterophile transplantation antigen | ** |
| High Trait Anxious | ** |
| human T antigens | ** |
| human telomerase activity | ** |
| human thymus antigen | ** |
| Hyalinizing trabecular adenoma | ** |
| hypothalamo-hypophyseal testicular axis | ** |
| Hemet Teachers Association | ** |
| Hopkinton Teachers Association | ** |
| High Technology Aeronautics | ** |
| Hierarchically Tiled Array | ** |
| Home Town Associations | ** |
| Hydro-Therm-Ablator((R | ** |
| High Temperature Approximation | ** |
| Humanities and Technology Association | ** |
| Honorary Trade Advisor | ** |
| Harbour Traders Association | ** |
| Highway and Transportation Authority | ** |
| Hydro Testing Alliance | ** |
| Highland Tartan Army | ** |
| Houston Texas Aus | ** |
| High Temperature Alloy | ** |
| High Temperature Annealing | ** |
| High Transmission Areas | ** |
| Hennessy Travelers Association | ** |
| Hosted Terminal Access | ** |
| Hackney Teachers Association | ** |
| Hobart Tasmania Australia | ** |
| Houston Tennis Association | ** |
| High Technology Associates | ** |
| Health Technology Association | ** |
| Hoyle Tanner and Associates | ** |
| Hollow Tine Aerator | ** |
| Historical Text Archives | ** |
| Hospitality Tourism Admin | ** |
| Home Theater Alliance | ** |
| Heavy Transport Association | ** |
| Harai Tsurikomi Ashi | ** |
| HUD Training Academy | ** |
| Hyper Text Application | ** |
| Heaton Township Association | ** |
| Heterogeneous Technology Alliance | ** |
| Huettl Thuilot Associates | ** |
| Hindu Temple Association | ** |
| History of the Town of Antigonish | ** |
| Homeowner Taxpayer Association | ** |
| Hospitality and Tourism Administration | ** |
| Human Technology Alliance | ** |
| Hardware Traffic Agent | ** |
| Harness Track of America | ** |
| Horse Themed Attraction | ** |
| Headwater Trails Alliance | * |
| Heath Technology Assessment | * |
| High Technology Association | * |
| High Temperature Aerostructures | * |
| High Temperature Application | * |
| High Temperature Assembly | * |
| History Teaching Alliance | * |
| Hostile Terrorist Activity | * |
| Huronia Tourism Association | * |
| Hazardous Test Area | * |
| Heat Treatable Alloy | * |
| heatlh technology assessment | * |
| High Throughput Analyzer | * |
| Hollywood Talent Agency | * |
| Housing Trust of America | * |
| Houston Teachers Association | * |
| Harrisburg Telugu Association | * |
| Haworth Traders Association | * |
| Henry Thomas Associates | * |
| High Tech Annex | * |
| High Ticket Auto | * |
| Higher Threat Areas | * |
| Hotel and Trade Association | * |
| Half Tetrad Analysis | * |
| Harbor Teachers Association | * |
| High Tech Association | * |
| Horticultural Trading Association | * |
| H°gskolen i Telemark Avdeling | * |
| H°gskolen Telemark Avdeling | * |
| Head of Territory Administration | * |
| Health Technology Assessment (organization / organisme) | * |
| Health Technology Assessment [organization / organisme] | * |
| History of the Trangie Angus | * |
| Holden Traditional Arche | * |
| Holy Transfiguration Antiochian | * |
| Home Title Agency | * |
| Hungry for a Taste of Adventure | * |
| Hunter Thomspon Approach | * |
| Hunting and Trapping Accidents | * |
| Hydra Technologies Annandale | * |