waterways

As a proper noun channel

is (by ellipsis) the english channel.

As a noun waterways is

.

As nouns the difference between waterways and ocean

is that waterways is while ocean is ocean.

As nouns the difference between rail and waterways

is that rail is a horizontal bar extending between supports and used for support or as a barrier; a railing or rail can be any of several birds in the family rallidae or rail can be (obsolete) an item of clothing; a cloak or other garment; a dress while waterways is .

As a verb rail

is to travel by railway or rail can be to complain violently ((against), (about)) or rail can be (label) to gush, flow (of liquid).

As nouns the difference between waterways and seaways

is that waterways is while seaways is .

As nouns the difference between canals and waterways

is that canals is plural of canal while waterways is plural of waterway.