The term 'Say With Authority' can be broken down into two crossword solutions: AVER and ASSERT. AVER is a 4-letter word meaning to declare or affirm with confidence, while ASSERT is a 6-letter word meaning to state a fact or opinion confidently and forcefully. Both words imply that the speaker is sure of what they are saying and has the authority to do so. This phrase is often used to describe someone who speaks with confidence and conviction.