| item | description | category | filter | more on... |
| GBU | German Beneficial Union | Other/Unions |
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| GBU | Glide Bomb Unit | Governmental/Military |
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| GBU | Global Business Unit | Business/General |
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| GBU | Greater Buttafuoco Universe | Uncategorized |
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| GBU | Ground Based Unit | Governmental/NASA |
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| GBU | Groupes Bibliques Universitaires | Edu./Universities |
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| GBU | Khashm El Girba, Sudan | Regional/Airport Codes |
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