Special skills refer to abilities that are not common and require a certain level of expertise. KNACKS, which is a 6 letter word, is defined as an acquired or natural skill at doing something. Crafts, also a 6 letter word, is defined as an activity involving skill in making things by hand. Therefore, special skills can be seen as a combination of KNACKS and crafts, which require a certain level of expertise and skill in order to be successful.