addendum /ə-denˈdəm/

1. A thing to be added, such as supplementary material to a book, etc
2. The distance between the centre and the outer edge of a tooth on a gear or of the thread of a screw (engineering)

• douleia
• douleias
• doulocracies
• doulocracy
• douma
• doumas
• doum-palm
• doum-palms
• do up
• doup
• doups
• dour
• doura
• dourer
• dourest
• dourine
• dourines
• dourly
• dourness
• dournesses
• douroucouli
• douroucoulis
• douse
• doused
• douser