The term 'TIE FABRIC' can be broken down into three crossword solutions: SILK (4 letters), REP (3 letters), and REPP (4 letters). SILK is a natural fiber produced by certain insects, such as the silkworm, and is known for its luxurious texture and shine. REP is a type of fabric weave that has a ribbed or corded surface, and is often used in upholstery and drapery. Repp is a heavier version of REP, and is usually used for ties, uniforms, and other apparel.