plumb line

English

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plumb line

Where it comes from

From Middle English plumblyne, equivalent to plumb + line.

noun plumb lines · plumbline

A cord with a weight attached, used to produce a vertical line; a plummet.
Any vertical reference line.

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MLA

"plumb line." Wiktionary, via Micwyn, micwyn.com/word/plumb%20line. Accessed 6 Nov. 2026.

APA

plumb line. (n.d.). In Wiktionary, via Micwyn. Retrieved November 6, 2026, from https://micwyn.com/word/plumb%20line

Chicago

"plumb line." Wiktionary, via Micwyn. Accessed November 6, 2026. https://micwyn.com/word/plumb%20line.

BibTeX

@misc{plumb_line_2026,
  title = {plumb line},
  howpublished = {Wiktionary, via Micwyn},
  year = {2026},
  url = {https://micwyn.com/word/plumb%20line},
  urldate = {2026-11-06}
}