The term is pronounced as "afuhDAYvit. " Breaking it down: "af" as in "after," "uh" as in "umbrella," "DAY" with emphasis, and "vit" rhymes with "fit."How to pronounce AFFIDAVIT. How to say AFFIDAVIT. This video shows you How to Pronounce Affidavit, pronunciation guide. "affidavit". Listen to the audio pronunciation again. Having trouble hearing a pronunciation? Affidavit definition: . See examples of AFFIDAVIT used in a sentence. General Affidavits are written statements of fact used to support your case or verify facts that are sworn to be true in front of a notary public.