plumb
/plสm/
B2 ยท Upper Int.โ
โ
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Simple Meaning
to measure how deep something is, or to check if something is straight up and down
When to Use
โ๏ธTechnical๐Academic Writing
Upper Intermediate โ fluent in familiar topics
Examples in Conversation
โThe wall isn't plumb โ it leans a little to the left.โ
โThey used a special tool to plumb the depth of the well.โ
Learning Path
โถFull Definition
A little mass of lead, or the like, attached to a line, and used by builders, etc., to indicate a vertical direction.