We found one dictionary that defines the word covault:

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1. Covault: Wiktionary

Definitions from Wiktionary (Covault) ▸ noun:  A surname. ▸ Words similar to covault ▸ Usage examples for covault ▸ Idioms related to covault ▸ Wikipedia articles (New!) ▸ Popular adjectives describing covault ▸ Words that often appear near covault ▸ Rhymes of covault ▸ Invented words related to covault