Home Dee Dee Word of the Day – Oct. 5 – Devoir Dee Dee Word of the Day – Oct. 5 – Devoir By Staff mB - October 5, 2012 1242 Noun: Devoir (duh-VWAHR) Definition: 1. Duty, responsibility 2. A usually formal act of civility or respect Sample sentence: I have a lot of chores in my house, but taking out the garbage is not my devoir.