A skill is the learned ability to carry out a task with pre-determined results often within a given amount of time, energy, or both. In other words, the abilities that one possesses. Skills can often be divided into domain-general and domain-specific skills. For example, in the domain of work, some general skills would include time management, teamwork and leadership, self-motivation and others, whereas domain-specific skills would be useful only for a certain job. Skill usually requires certain environmental stimuli and situations to assess the level of skill being shown and used.

SKILL is a Lisp dialect used as a scripting language and PCell (parameterized cells) description language used in many EDA software suites by Cadence Design Systems (e.g. Cadence Allegro and Cadence Virtuoso). It was originally put forth in an IEEE paper in 1990.