"Knit underwear" is a common term used to refer to undergarments made from knit fabric. However, there are other terms that can also be used interchangeably to describe the same type of underwear. Some of these synonyms for knit underwear include: 1. Knickers 2. Panties 3. Briefs 4. Boxers 5. Thongs 6. Boyshorts 7. Lingerie 8. Intimates 9. Underwear 10. Undergarments. All of these terms are widely used to refer to the same article of clothing, and can be used depending on preference or specific context. No matter what term is used, knit underwear can provide comfort and support for both men and women.