We found one dictionary that defines the word first hour:

General (1 matching dictionary)

1. First Hour, The First Hour: Wikipedia, the Free Encyclopedia

▸ Words similar to first hour ▸ Usage examples for first hour ▸ Idioms related to first hour ▸ Wikipedia articles (New!) ▸ Words that often appear near first hour ▸ Rhymes of first hour ▸ Invented words related to first hour