The answer is:
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Lumber (n.) — A pawnbroker's shop, or room for storing articles put in pawn; hence, a pledge, or pawn.
Lumber (n.) — Old or refuse household stuff; things cumbrous, or bulky and useless, or of small value.
Lumber (n.) — Timber sawed or split into the form of beams, joists, boards, planks, staves, hoops, etc.; esp., that which is smaller than heavy timber.
Lumbered (imp. & p. p.) — of Lumber
Lumbering (p. pr. & vb. n.) — of Lumber