Yes, in portuguese (brazil), you can say feliz dia de ação de graças to wish someone a happy thanksgiving. Dia de ação de graças is the direct translation of thanksgiving, and adding feliz. What is the difference between happy born day and happy birthday ?feel free to just provide example sentences.

Happy about (something). Not sure what that means!? In general in japan, saturday and sunday are holidays, so the end of the week becomes friday, which makes you want to say, happy weekend!! 😊.