Nail-head is a specific term that refers to the top of a nail or the part that is hammered into the surface. It is also used to describe a decorative element in furniture, metalwork, and other crafts. There are several synonyms for nail-head that can be used in different contexts. Some of the synonyms include tack, brad, rivet, pin, bolt, spike, stud, and fastener. Each of these synonyms has a slightly different connotation or use. For example, a tack is a thin nail with a large, flat head used for attaching fabric or upholstery. A rivet is a fastener that is used to join two pieces of metal or other materials. Choosing the appropriate synonym for nail-head can help to create a more accurate and descriptive description of a specific object or material.