This is the 11735th most frequent Portuguese word.
pontinha
"Pontinha" means "little tip" or "small point."
Here, 'pontinha' refers metaphorically to a small amount or hint of hope.
Eu vi uma pontinha de esperança nos seus olhos.
I saw a glimmer of hope in your eyes.
In this context, 'pontinha' represents the physical tip or small end of the paper.
Ela cortou a pontinha do papel com a tesoura.
She cut off the tip of the paper with scissors.
Here, 'pontinha' metaphorically describes a small visible portion or edge of the moon as seen behind the clouds.