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plumb (EN)
глагол, наречие, существительное

глагол “plumb”

инфинитив plumb; он plumbs; пр. вр. plumbed; пр. прич. plumbed; гер. plumbing
  1. замерить глубину
    Before diving into the lake, she plumbed it to ensure it was safe.
  2. глубоко исследовать
    To truly understand his character, the author spent months plumbing his protagonist's past.
  3. подключить к водопроводу и канализации
    Before moving in, we had to plumb the new sink to ensure it had running water and proper drainage.

наречие “plumb”

plumb (more/most)
  1. прямо (в значении точно или абсолютно)
    She fell plumb into the pool with a loud splash.

существительное “plumb”

ед. plumb, мн. plumbs
  1. отвес
    To ensure the wall was perfectly vertical, the construction worker hung a plumb from the top edge.