This is the 12301st most frequent Portuguese word.
sanduíche
Sanduíche: A sandwich.
Here, 'sanduíche' is used as a countable noun referring to a specific food item.
Eu comi um sanduíche delicioso no almoço.
I ate a delicious sandwich for lunch.
In this instance, 'sanduíche' again acts as a countable noun denoting a food item made to be consumed later.
Ele preparou um sanduíche para a viagem.
He prepared a sandwich for the trip.
Here, 'sanduíche' is used in a general sense as a concept or category of food.