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WordNet-Online 
 
Adjective lumbering has 1 sense 
 
Noun lumbering has 1 sense 
Verb lumber has 2 senses 
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| lumbar vein lumbar vertebra lumbard lumber lumber jacket lumber mill lumber room lumbered lumbering lumberjack lumberjack s lumberman lumberman s lumbermen lumbermill lumberyard lumbosacral 
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