PronunciationEdit

NounEdit

Singular
lumber

Plural
none

 
Lumber
  1. (uncountable) Lumber is wood that is cut up into planks.
    The frame of the house is made of lumber.

VerbEdit

Plain form
lumber

Third-person singular
lumbers

Past tense
lumbered

Past participle
lumbered

Present participle
lumbering

  1. If you lumber, you move clumsily and slowly.