plumb
noun/plʌm/
Frequency rank: #14,097 of 20,003 in the WORDED list (wordfreq data)
Meaning
exactly vertical or true; or a weight on a string used to find a vertical line.

Example sentence
The carpenter used a simple plumb line to make sure the wall was perfectly vertical.
Synonyms & related words
More words in ranks 14,001–14,100
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