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WordNet
lump sugar

n. refined sugar molded into rectangular shapes convenient as single servings

Wikipedia
Lump Sugar

Lump Sugar (or Lump of Sugar; ) is a 2006 South Korean film directed by Lee Hwan-kyung and starring actress Im Soo-jung.

Usage examples of "lump sugar".

She handed Josh a sugar bowl, with white squares of lump sugar glistening like snow, and a couple of round-backed, almost S-shaped little teaspoons.

I bought things too out of my pocket money-tea and coffee beans and salt and pepper and cloves and a great packet of lump sugar.

Kiki picked a piece of rind out of the marmalade and, as nobody said anything, took a piece of lump sugar from the sugar-basin.