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A to Z Glossary of Home Improvement Terms - O

This page of our online a to z glossary is for home improvement terms beginning with the letter 'O'.

• Obeche - An easily worked wood that is often used in the manufacture of whitewood furniture.
• Obelisk - A tall stone pillar with four tapering sides and a pointed pyramidal top.
• Open Plan - A living area which is not defined or broken up by partition walls.
• Oriel Window - A type of bay window which is supported on brackets.
• Out of plumb - Not vertical (out of true).
• Overload - Exceed the working capacity of a circuit (take too much current).
• Oxidize - The corrosion of metal (rusting) due to its combination with oxygen.