One who hoards; one who accumulates, collects, and stores.(noun)
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Use "hoarder" in a sentence
"A spike in gold is one thing, a sustained price level reflecting a decline in the dollar may seem like low hanging fiscal fruit for the tax man. $3,000 gold for a sustained period could bring the label hoarder thrown at the gold owner."
"The hoarder is a person who needs help with decision making, possibly depression and a whole host of other issues – a cleaning service will not cure the hoarder."
"The report also notes that Stephen Vassilev, the resident in the unit where the fire started and whom neighbours and investigators have identified as a hoarder, complained to TCHC on April 16, 2009 about the neighbour in the unit above "throwing broken bottle and cigarette butts on his balcony.""