The word 'infuser' refers to a tool or device that adds flavor or extracts flavor from liquids, or herbs, as well as fruits. Some synonyms for the word infuser are tea-strainer, diffuser, steeping ball, brewing pot, and teapot, among others. A tea-strainer is an infuser that helps to separate tea leaves from the liquid. Diffusers are commonly used for oil. Steeping balls are used for adding flavor to soups or stews, while brewing pots are specifically designed for brewing tea. A teapot, on the other hand, is an infuser that is often used to prepare and serve tea at the table. Different infusers may be best suited for different foods or beverages depending on their intended purpose.