This is the 10552nd most frequent Spanish word.
creencia
Belief or conviction.
In this sentence, 'creencia' refers to a general belief or trust in a trait or concept.
La creencia en la bondad de las personas puede motivar acciones altruistas.
The belief in the goodness of people can motivate altruistic actions.
Here, 'creencias' refers to shared societal norms and values.
Muchas creencias culturales se transmiten de generación en generación.
Many cultural beliefs are passed down from generation to generation.
In this usage, 'creencia' denotes a personal conviction, incorrect or otherwise.