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| Subject | English | Thesaurus |
| abbr. | Hi Cd | High Command |
| abbr. | Hi-Po | high potential near miss (MichaelBurov) |
| abbr., auto. | hi-po | high performance |
| abbr., st.exch. | HI PO | Household International, Inc. Preferred O |
| abbr. | hi-vis | high-visibility (ВосьМой) |
| abbr. | hi-viz | high-visibility (ВосьМой) |