Yale lock™

noun
🔊/ˈjeɪl lɒk/
🔊/ˈjeɪl lɑːk/
(British English)
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  1. a type of lock that is often fitted in the front door of a house and which opens by using a flat key with a series of pointed edges耶鲁锁(常装于房屋大门,钥匙呈扁平锯齿状)