If you are unsure which form you need, please call the Department of Planning and Development at , TTY 711. 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. Affidavit definition: . See examples of AFFIDAVIT used in a sentence. This video shows you How to Pronounce Affidavit, pronunciation guide.