Tare and tret are two words that are often discussed synonymously. Tare is usually defined as the weight of a container that must be subtracted from the weight of its contents to obtain an accurate measurement. Tret, on the other hand, refers to an allowance made for waste or spoilage. While tare and tret can be used interchangeably in some contexts, they have distinct meanings and uses. Tare is commonly used in the shipping and food industries, while tret is often used in accounting and taxation. Other synonyms for tare include deduction, subtraction, and adjustment, while synonyms for tret include allowance, discount, and rebate.