skill

Proficiency, facility, or dexterity that is acquired or developed through training or experience.

A developed talent or ability.

An art, trade, or technique, particularly one requiring use of the hands or body.

A reason; a cause.

To set apart; separate.

Hence, to discern; have knowledge or understanding (to); know how: usually with an infinitive.

To have perception or comprehension; have understanding; discern: followed by of or on.

To have personal and practical knowledge (of); be versed or practised; hence, to be expert or dexterous: commonly followed by of.

To make difference; signify; matter: used impersonally, and generally with a negative.