[noun]Aptitude is natural ability or skill.My son has no/little aptitude for sport. [U]My daughter is showing an aptitude for/at maths. [C]We will take your personal aptitudes and abilities into account. [C]I had to take an aptitude test (= a test to find out whether I had the natural ability to be suitable for that particular type of work) before I began training as a nurse.
APTITUDE
Meaning of APTITUDE in English
Cambridge English vocab. Кембриджский английский словарь. 2012