Dec 3, 2015 · vertical, perpendicular, plumb mean being at right angles to a base line. vertical suggests a line or direction rising straight upward toward a zenith.

plumb verb [T] (DEEP) engineering specialized to measure how deep something is, especially water to understand or discover all about something:

PLUMB definition: a small mass of lead or other heavy material, as that suspended by a line and used to measure the depth of water or to ascertain a vertical line. See examples of plumb …

1. (Building) a weight, usually of lead, suspended at the end of a line and used to determine water depth or verticality 2. (Building) the perpendicular position of a freely suspended plumb line …

Plumb is used to give emphasis to an adjective or verb that describes a feeling or condition.

Dec 11, 2025 · plumb (third-person singular simple present plumbs, present participle plumbing, simple past and past participle plumbed) To determine the depth, generally of a liquid; to sound.

plumb /plʌm/ n. [countable] Building, Surveying a small mass of lead hung on a line and used to measure the depth of water or to make sure a line is straight up and down.

They are reliable, professional, clean and friendly. Always a fantastic experience." 2. Two Men And A Snake Inc. From Business: Has your home or commercial building’s plumbing been …

Definition of plumb verb in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.