What does 'te nada' mean in English?

The verb nadar, which means 'to swim' in Portuguese and in Spanish, is intransitive. So it doesn't take a direct object. In the phrase of the above question, 'te nada' appears to be an example of the direct object 'te' with the verb 'nada'. But that's most likely a mistake. Instead, the phrase most likely is de nada, which is a way of saying 'you're welcome' in Portuguese and in Spanish. It also may be translated as 'no problem' and '[It's] nothing'. However it's translated, t's the response to the Portuguese obrigada/obrigado, and to the Spanish gracias, both of which mean 'thank you' in English. de = from, of. nada = nothing.