Rank | Abbreviation | Meaning |
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***** | THUMB DEAD BOLT. | A type of single cylinder lock often used in hotels. A door locked with such a lock can be opened from the inside by hand (or “thumb”) rather than a key, offering a quick exit in case of emergency
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**** | THUMB DRIVE | a.k.a. flash drive, junk drive, jump drive, travel drive
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**** | THUMB | Tiny Humans Underground Military Bureau
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*** | BLACKBERRY THUMB | a.k.a. Playstation thumb
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*** | THUMB | Tiny Human Underground Military Bureau
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*** | THUMB | Tribal Hindu Unreligious Muslim Buddhist
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