Japanese edit

For pronunciation and definitions of しゅせき – see the following entries.
主席
[noun] (government) president (of a socialist state)
[noun] chairperson, chairman, chairwoman
[noun] top-ranked seat
首席
[noun] top of one's class
[noun] chief or principal member of some group
(This term, しゅせき, is the hiragana spelling of the above terms.)