This is the 1318th most frequent Russian word.
способность
Ability; capacity.
Here, 'способность' refers to a general talent or skill possessed by a person.
У него есть способность быстро учиться.
He has the ability to learn quickly.
In this instance, 'способность' denotes a mental capacity or aptitude that can be nurtured or developed.
Развитие способности концентрироваться помогает ученикам в обучении.
Developing the ability to concentrate helps students in their learning process.
Here, 'способность' is used in a biological or physical context, indicating a functional property or capability.