This is the 7609th most frequent Portuguese word.
pis
"Pis" is a Portuguese acronym for "Programa de Integração Social," referring to a social program in Brazil that funds employee benefits.
Here, 'pis' is derived from 'pisar', which means 'to step on'.
Pis o chão cuidadosamente.
Step on the ground carefully.
In this sentence, 'piso' refers to 'floor', used as a noun.
O seu piso é feito de madeira.
Your floor is made of wood.
'Pisos' in plural form refers to floor tiles, commonly used in construction contexts.