A "thin dime" is a term that refers to a small amount of money. Some synonyms for this term include a "pittance," a "trifle," a "nickel and dime," or even "chump change." These terms all allude to a sum of money that is considered insignificant or unimportant. While a thin dime may not seem like much, it can add up over time. Additionally, it's important to remember that what may be a small amount to one person is a considerable amount to another. As such, it's always important to view financial situations from a larger perspective when assessing their value.