This is the 5144th most frequent Portuguese word.
observação
Observation.
Here, 'observação' refers to the act of observing, emphasizing the process and wonder of examining stars.
A observação das estrelas é fascinante.
Observing the stars is fascinating.
In this sentence, 'observação' means a remark or comment, highlighting a written or spoken point made regarding the project.
Deixe sua observação sobre o projeto na caixa de sugestões.
Leave your remark about the project in the suggestion box.
Here, 'observação' is used in the sense of continuous monitoring, focusing on the action of checking outcomes for analysis purposes.