noun
sawmill
SAW-mil/ˈsɔːmɪl/
A facility where logs are cut into lumber.
The sawmill cuts a log lengthwise into straight boards.

Etymology
Mill expanded from a grain-grinding establishment to other machinery-equipped workplaces. Adding saw identifies the work done there: cutting timber into boards and planks, originally with water or wind power.
In context
this Lumber right here is rough lumber that's been sawn but not planed and not dried so it's come through the sawmill
More examples
- Trucks carry fresh timber to the sawmill.
- The old sawmill stands beside the river.
- Workers stack lumber behind the sawmill.
Forms
sawmill · sawmills