plumb line Meaning in the Cambridge English Dictionary
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Meaning of “plumb line” in the English Dictionary

"plumb line" in British English

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plumb linenoun [C]

uk   us  
a ​piece of ​string with a ​weightattached to one end, used either to ​test if something ​vertical, such as a ​wall, is ​exactlystraight, or to ​find the ​depth of ​water
(Definition of plumb line from the Cambridge Advanced Learner’s Dictionary & Thesaurus © Cambridge University Press)
Translations of “plumb line”
in Chinese (Simplified) (测垂直面或水深的)铅垂线,重锤线…
in Chinese (Traditional) (測垂直面或水深的)鉛垂線,錘線…
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