Simple past tense and past participle of mound.(verb)
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Use "mounded" in a sentence
"Use the ruffled petals to your advantage, layering the flowers for a kind of mounded look with monochromatic texture."
"And while banca at first referred strictly to the old money-changing workbench, it soon came to refer to something else: the place where money or valuables were “mounded,” “piled,” “raised up,” or simply “banked.”"
"They mounded in the gap—thirty feet and sixty feet and ninety feet high, filling the canyon."