St. Lawrence __, Connects Atlantic, Great Lakes

This page is the CodyCross answer for the clue below from Inventions, Group 49, Puzzle 5.

Question is: St. Lawrence __, Connects Atlantic, Great Lakes

and the answer is: SEAWAY

Word Meaning:

SEAWAY — (nautical) A lane or route at sea that is regularly used by ships; a sea lane or trade route.

Definitions from Wiktionary.