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Something, like a piece of jewellery or an antique, that has been passed down in a family line. These things often have great sentimental value, whether they are worth a lot of money or not.

Heir - a descendant
Loom - a tool
My Oma left me some heirloom jewellery when she passed away. Some may think that the jewellery is junk, but it is precious to me.
by bbeingcool August 19, 2011
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