We found 4 dictionaries that define the word with authority:

General (3 matching dictionaries)

1. with authority: Merriam-Webster
2. With Authority: Wikipedia, the Free Encyclopedia
3. with authority: Rhymezone

Business (1 matching dictionary)

4. with authority: Legal dictionary

Definitions from WordNet (with authority) ▸ adverb:  in an authoritative manner Opposite: without authority, unofficially, informally Phrases: to rule with authority, speak with authority, person with authority, states with authority, say with authority, more... ▸ Words similar to with authority ▸ Usage examples for with authority ▸ Idioms related to with authority ▸ Wikipedia articles (New!) ▸ Words that often appear near with authority ▸ Rhymes of with authority ▸ Invented words related to with authority