This is the 11873rd most frequent Portuguese word.
propensão
Inclination or tendency toward something.
In this sentence, 'propensão' is used to describe a natural inclination or tendency that the person has towards the activity of learning languages.
Ele tem uma propensão para aprender novas línguas rapidamente.
He has a propensity for learning new languages quickly.
Here, 'propensão' refers to the likelihood or inclination of individuals to engage in risky behaviors or decisions.
A propensão ao risco varia de pessoa para pessoa.
The propensity for risk varies from person to person.
In this case, 'propensão' is utilized to indicate the increased likelihood or predisposition toward developing a certain condition, in this instance, obesity.