This is the 12398th most frequent Portuguese word.
skate
A board with wheels used for skateboarding.
In this sentence, 'skate' is used as the object of the activity 'andar de', referring directly to the skateboard as the means for the action.
O Pedro gosta de andar de skate no parque.
Pedro likes to skateboard in the park.
Here, 'skates' is employed as a noun in plural form to reference the objects for the activity.
A loja vende skates de diferentes tamanhos.
The store sells skateboards of different sizes.
In this usage, 'skate' refers to the activity or sport of skateboarding itself.