the world > food and drink > food > additive > sweetener > [noun] > sugar > lump sugar (3)
loaf sugar broken into lumps or cut into cubes.
A material body of this form; a cubical block of anything. e.g. of tea, sugar. Also attributive.
A compact mass of no particular shape; a shapeless piece or mass; often with implication of excessive size, protuberant outline, or clumsiness. Also…