Question

Based on the sentence , what does “plumb” mean?

Answer 1

It’s one of these depending on the sentence
1.
measure (the depth of a body of water).
2.
test (an upright surface) to determine the vertical.

Answer 2

The word "Plumb", For the sentence "kitchen cabinets should be hung exactly level and plumb" means: to test (an upright surface) to determine the vertical.