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)

• prison door
• prison doors
• prisoned
• prisoner
• prisoner of conscience
• prisoner of war
• prisoners
• prisoner's base
• prisoners' base
• prisoner's bases
• prisoners of war
• prison house
• prison houses
• prisoning
• prisonment
• prisonments
• prison officer
• prison officers
• prisonous
• prisons
• prison ship
• prison ships
• prison van
• prison vans
• prison visitor