The crossword solution for the term 'straight, thin cut' is SLIT. A SLIT is a narrow cut or opening in an object or surface, usually made with a sharp instrument such as a knife or razor. Slits are often used to create openings in fabric, paper, or other materials. They can also be used to create decorative patterns or to separate two pieces of material. Slits can also refer to a long, narrow opening in a wall or other structure.