the world > the earth > water > body of water > channel of water > [noun] > navigable waterway > canal > constructing canals (7)
The action, process, or industry of making canals; the construction of a canal or canals. Now chiefly historical.
The action, process, or result of constructing a canal or canals; = canalling, n. 1.
Canals collectively; canal construction, canal work.