How you say thank and welcome in Portuguese?

Here's how to say "thank you" and "welcome" in Portuguese:

Thank you:

* Obrigado (formal, masculine)

* Obrigada (formal, feminine)

* Obrigado(a) (informal, both genders - this is a combined form that can be used for both male and female recipients)

* Obrigada(o) (informal, both genders - this is another combined form that can be used for both male and female recipients)

Welcome:

* Bem-vindo(a) (formal, both genders)

* Seja bem-vindo(a) (more formal, both genders)

* Bem-vindo (informal, masculine)

* Bem-vinda (informal, feminine)

Note: In Portuguese, gender agreement matters. You need to use the correct form based on the gender of the person you're addressing.