(Canada, US) Wood sawn into planks or otherwise prepared for sale or use, especially as a building material. / (now rare) Old furniture or other items that take up room, or are stored away.

(intransitive) To move clumsily and heavily; to move slowly. / (transitive, with with) To load down with things, to fill, to encumber, to impose an unwanted burden on / To heap together in disorder.

plural of lumberer

The act of one who lumbers; heavy, clumsy movement. / (US) The business of felling trees for lumber.

One who lumbers, who moves in a heavy and ungainly manner. / One who is involved in the production of lumber.

Clumsy or awkward. / Heavy, slow and laborious; ponderous.

Third-person singular simple present indicative form of lumber

simple past tense and past participle of lumber

plural of lumbering

(baseball) To hit extra-base hits. / (sports) To play in a physically aggressive way in a contact sport, especially defensively.