improvement
US /ɪmˈpruːv.mənt/
UK /ɪmˈpruːv.mənt/

1.
melhora, aprimoramento
the act or process of making something better or the state of being better
:
•
There has been a significant improvement in her health.
Houve uma melhora significativa na saúde dela.
•
We are always looking for ways to make improvements to our services.
Estamos sempre procurando maneiras de fazer melhorias em nossos serviços.