lumber

lumber verb uk/ˈlʌmbər/ us   lumber along/around/off, etc
to move slowly with heavy steps

тяжело двигаться, переваливаться
The bear lumber ed off into the forest. Фразовые глаголыbe lumber ed with sth/sb

LUMBER noun

[ U ] US uk/ˈlʌmbər/ us(UK timber)
wood that is used for building

пиломатериалы