wood
Word family
Synonym discussion
Sense: noun/1
Timber, lumber, hardwood, and plywood all refer to wood as a material, but they differ in origin, processing, and regional preference. Timber is the general term in British English for wood used in building — a builder orders timber from a yard. Lumber is the American equivalent: a hardware shop in the US sells lumber, not timber. Hardwood refers to wood from broad-leaf trees (oak, maple, walnut) and is denser and more durable than softwood from conifers; it is also the computing term for the physical components of a computer — a completely separate meaning. Plywood is a manufactured product made by gluing thin layers of wood together in alternating directions; it is building material, not a tree type. For everyday use: 'I need some wood for a shelf' is the simplest choice. If you want to be specific about the tree type, say 'oak wood' or 'pine wood'. If you are buying construction materials in the US, ask for 'lumber'; in the UK, ask for 'timber'.
Common collocations
Etymology
Wood comes from Old English wudu, wiodu, meaning 'tree, forest, the substance of trees'. This goes back to Proto-Germanic *widuz ('tree, wood'), with relatives in Old Norse viðr, Old Saxon widu, and Old High German witu. The Germanic root traces further to Proto-Indo-European *h₁weydʰ- or *weit-, meaning 'forest' or 'wood'. The word has remained remarkably stable in meaning across more than a thousand years of English — from the great epic poem Beowulf (which opens with reference to the 'spear-wood' of warriors) to a modern carpenter ordering supplies.