Aptitude

Apt·i·tude

Aptitude

n.
  1. A natural or acquired disposition or capacity for a particular purpose, or tendency to a particular action or effect; as, oil has an aptitude to burn.
    He seems to have had a peculiar aptitude for the management of irregular troops.
  2. A general fitness or suitableness; adaptation.
    That sociable and helpful aptitude which God implanted between man and woman.
  3. Readiness in learning; docility; aptness.
    He was a boy of remarkable aptitude.