Lumber means wood that people cut and use for building or making furniture. It is wood ready to be used in construction.
The house was built with strong lumber.
We need lumber to make a table.
To lumber something means to fill or block it with things that make it heavy or slow. It can also mean to burden someone.
The old furniture lumbered the small room.
He lumbered his mind with too many worries.
Lumber can also mean the business of cutting trees and selling wood for use. It is an industry word.
He works in the lumber industry.
The town depends on lumber for money.
