This is the 6547th most frequent Portuguese word.
espadinha
A small sword or dagger.
Here, 'espadinha' refers to a diminutive form of 'espada', meaning a small sword.
Eu encontrei uma espadinha no jardim.
I found a small sword in the garden.
In this sentence, 'espadinha' refers metaphorically to the shape of the leaf, which is thin and elongated like a small sword.
O formato da folha parece uma espadinha.
The shape of the leaf resembles a small sword.
The word 'espadinha' here specifies the size of the sword used, indicating it's smaller than a typical sword, suitable for fencing training.