| NOUN | artifact | pin tumbler, pin | cylindrical tumblers consisting of two parts that are held in place by springs |
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| Meaning | cylindrical tumblers consisting of two parts that are held in place by springs; when they are aligned with a key the bolt can be thrown. | |
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| Synonym | pin | |
| Part of | cylinder lock | A lock in which a cylinder rotates to move a bolt |
| Broader | tumbler | A movable obstruction in a lock that must be adjusted to a given position (as by a key) before the bolt can be thrown |
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