I think enough people of this forum know what Arigato means.
It's thank you in Japanese.
It was the 1st word my friend learned me in Japanese and I liked the way you write it.
I used to have like 574357897 other usernames but this one is my current ( and the longest I ever used =3 ).
Most of the time I use a Anime name of a person I like, Example : Athrun Justice, Asuka Langely, Amane Misa.