Underground Form of Public Transportation
This page is the CodyCross answer for the clue below from The 1950s, Group 1819, Puzzle 4 (Tuna Casserole).
Question is: Underground Form of Public Transportation
and the answer is: SUBWAY
Word Meaning:
SUBWAY — (Canada, US, Scotland, South Africa) An underground railway, especially for mass transit of people in urban areas.
Definitions from Wiktionary.