sort by Rank | Alpha
| Possible Meanings | Rank |
| High Impact Polystyrene Sheet | *** |
| Historic Iris Preservation Society | *** |
| Health Information Privacy and Security | *** |
| High Integrity Protection Systems | *** |
| Host Intrusion Prevention Software | *** |
| Health Insurance Plan for Students | *** |
| Hyper-Interaction within Physical Space | *** |
| Host Intrustion Prevention System | *** |
| High Intensity Proton Source | *** |
| Horizon Institute of Paralegal Studies | *** |
| Highly Interactive Problem Solver | *** |
| Host Intrusion Prevention Systems | *** |
| High Impact Poly Styrene | *** |
| Home Information Packs Solution | ** |
| Hospital Information Planning Study | ** |
| High Island Pipeline System | ** |
| human immunodeficiency virus Prevention Study | ** |
| Heparin Infusion Prior to Stenting | ** |
| Hacettepe Institute of Population Studies | ** |
| HIV-1-infected but persistently seronegative | ** |
| health insurance plan survey | ** |
| Host Intrusion Prevention Service | ** |
| Home Installed Products and Services | ** |
| High Impact Polystyrene See | ** |
| High Integrity Protective System | ** |
| High Impact Protection System | ** |
| Hobbies Interests Pastimes and Sports | ** |
| Home Intrusion Prevention System | ** |
| High Integrity Pressure System | ** |
| Hawaii Island Palm Society | ** |
| Health Initiatives for the Private Sector | ** |
| Honolulu Internet Permit System | ** |
| Health Information Processing System | ** |
| Home Information Pack Sell | ** |
| Host Intrusion Prevention Solutions | ** |
| Hipwell International Production Services | ** |
| Home Information Pack Suppliers | ** |
| Hybrid Integrating Plate Sphere | ** |
| Hamdard Institute of Pharmaceutical Sciences | ** |
| Homewood Imaging and Photographic Services | ** |
| Health in Primary Schools | * |
| Historical Iris Preservation Society | * |
| Head Injury Participation Scale | * |
| Health Informatics Privacy and Security | * |
| Hunter Integrated Pain Service | * |
| Highway Investment Programming System | * |
| Health Information Profiling System | * |
| Hardcopy Imagery Processor System | * |
| Hoist Integrated Protective System | * |
| Horizon Institute of Paralegal Services | * |