| item | description | category | filter | more on... |
| HCU | Hawaii Chat Universe | Chat and Slang |
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| HCU | High-Capacity Computer Unit | Governmental/Military |
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| HCU | Home Computer User | Uncategorized |
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| HCU | Horizontal Competancy Unit | Business/General |
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| HCU | Hydraulic Charging Unit | Governmental/NASA |
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