Musi- well in English language Musi doesn't mean nothing.
There is no definition.
BUT country where i come from (Estonia) word MUSI means a lot.
You can say Musi if you would like to say kiss
You can say Musi near kids and you mean lips
You can say Musi if you have nickname for your loved one similar to honey and darling
So this is the meaning of MUSI and why i chose that to be my business name. Also its easy to write and easy to say :)