Lily and her mother wandered from place to place, now paying long visits to relations whose house-keeping Mrs. Bart criticized, and who deplored the fact that she let Lily breakfast in bed when the girl had no prospects before her, and now vegetating in cheap continental refuges, where Mrs. Bart held herself fiercely aloof from the frugal tea-tables of her companions in misfortune.
There are no more uses of "frugal" in the book.
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A good salary and frugal spending habits led to a large bank account.
She was raised with frugal habits and always orders tap water to drink at a restaurant.