plumbとは何ですか?A weight on the end of a line, used to determine water depth.A weight on the end of a line, used especially by masons and carpenters to establish a true vertical.In a vertical or perpendicular line.Informal Directly; squarely: fell plumb in the middle of the puddle. Informal Utterly; completely: plumb worn out. See Note at right.Exactly vertical. See Synonyms at vertical.Informal Utter; absolute; sheer: a plumb fool. To determine the depth of with a plumb; sound.To test the verticality or alignment of with a plumb.To straighten or make perpendicular: plumb up the wall. To examine closely or deeply; probe: "Shallow ideas are plumbed and discarded” ( Gilbert Highet). To seal with lead.To work as a plumber.out of Not vertical.