The term "mushin" (無心) is a Japanese word that translates to "no mind" or "empty mind" in English. It is often used in the context of Zen Buddhism and martial arts. The word "mushin" does not have specific tone marks since it is written in kanji (Japanese characters), but if you were to Romanize it in a phonetic way, it would be written as "mushin" without any diacritical marks.
In terms of pronunciation, the syllables would typically be pronounced as:
- "mu" as in "moo"
- "shin" as in "sheen"
If you're looking for something specific regarding tone marks in another context, please clarify!