This is the 5515th most frequent Portuguese word.
trocado
"Trocado" in Portuguese refers to "small change" or "coins."
In this sentence, 'trocado' refers to small coins or money in small denominations, used specifically when discussing the payment for something.
Você tem trocado para eu pagar o ônibus?
Do you have some small change so I can pay for the bus?
Here, 'trocado' is used in its past participle form ('troquei') to indicate the act of exchanging one item for another.
Troquei o livro velho por um novo na loja.
I exchanged the old book for a new one at the store.
In this usage, 'trocados' is the plural form referring to insignificant amounts of money or small coins left in pockets.