There are many different answers. e.g.Päivää - It also means afternoon/day. (Hyvää Päivää = Good afternoon/day)Moi - Not so formal. Usually said to a friend, and Moikka means goodbye. There...
Taivaallinen hevonen
Hyvää päivää
Finnish (the language) = "suomi" or "suomen kieli" A Finnish person= "suomalainen"
You are Finnish: "Sinä olet suomalainen." I am Finnish: "Minä olen suomalainen." Suomalainen is spelt with a lower case s.