plumb line

1. 1.

   a cord from which a metal weight is suspended pointing directly to the earth's center of gravity; used to determine the vertical from a given point

   Synonymsperpendicular

   Broadercord

   Narrowerlead lineplumb rule

   Partsplumb bob

Questions about plumb line

What does plumb line mean?

plumb line means "a cord from which a metal weight is suspended pointing directly to the earth's center of gravity; used to determine the vertical from a given point".

What is another word for plumb line?

Close synonyms include perpendicular. Each sense on this page lists its own synonyms, because a word with several meanings rarely has one substitute that works for all of them.

Is plumb line a common word?

plumb line is banded "Rare" — specialist or archaic — most readers will not have met it. The band comes from how often the word appears in a large corpus of everyday English, not from an editor's impression.