banrion, welcome to the Pond. I did not have "weight" as one of my items to find ... so, just a couple of thoughts. Is this a Picture item ... or is the word itself written out? If it's a picture, maybe it is not a weight. If it is a picture, what other pictures are there?
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...When you click on hint, where does it show?
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...If they've written the word, I'd consider the following. (1) dumbbell type; (2) the type used on a scale .. (you know, maybe bell shape or cylinder shape with little knobby on top to pick it up). OR, (3) a set of scales (because it weighs)....I know, but it's a wordplay thing..
Hope tis helps. Happy Gaming.