Carpenter's level and Plumb level

Carpenter's level noun - A straight bar of light metal with a spirit level in it.

Plumb level and carpenter's level are semantically related. In some cases you can replace phrase "Plumb level" with "Carpenter's level", this phrases are similar.

Plumb level noun - A carpenter's level with a plumb line at right angles to it.

Carpenter's level and plumb level are semantically related. You can use "Carpenter's level" instead a noun phrase "Plumb level".