This word is acceptable for play in the UK dictionary that is being used in the following games:

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n. The property of being sparing.

n. The character of being sparing or inclined to spare; especially, frugality, scantiness, or the like: as, the sparingness of one's diet.

"But his quiet manner of living and his sparingness in expenses and his disregard of appearance gave him, when he became emperor, an ill-name for meanness, being, in fact, his worn-out credit for regularity and moderation."

frugality