We found one dictionary that defines the word arch rivalries:

General (1 matching dictionary)

1. arch-rivalries, arch rivalries: Wiktionary

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