We found one dictionary that defines the word the longest day:

General (1 matching dictionary)

1. The Longest Day (album), The Longest Day (book), The Longest Day (disambiguation), The Longest Day (film), The Longest Day (game), The Longest Day: Wikipedia, the Free Encyclopedia

Phrases: The Longest Day in Chang'an, more... ▸ Words similar to the longest day ▸ Usage examples for the longest day ▸ Idioms related to the longest day ▸ Wikipedia articles (New!) ▸ Words that often appear near the longest day ▸ Rhymes of the longest day ▸ Invented words related to the longest day