主席 (しゅせき)head; chief; chairman

head; chiefnoun (common) (futsuumeishi), nouns which may take the genitive case particle 'no'
chairman; governor; presidentnoun (common) (futsuumeishi)
top student; head of the classnoun (common) (futsuumeishi)
top seat; first desk (in orchestra)noun (common) (futsuumeishi)

主席, its kanji, and other words that share them.Open this graph

Kanji in 主席

喪主もしゅchief mourner
民主みんしゅdemocracy; popular sovereignty
主催しゅさいsponsorship (i.e. conducting under one's auspices); promotion
主婦しゅふhousewife; mistress (of the house)
主張しゅちょうclaim; insistence
主義しゅぎdoctrine; rule
主要しゅようchief; main
朝鮮民主主義人民共和国ちょうせんみんしゅしゅぎじんみんきょうわこくDemocratic People's Republic of Korea (North Korea); DPRK
議席ぎせきparliamentary seat
出席しゅっせきattendance; presence
席せきseat
打席だせきbatter's box; one's turn at bat
席上せきじょうat the meeting; on the occasion
同席どうせきpresence; sitting with
出席者しゅっせきしゃthose present; attendance
座席ざせきseat

See how 主席 connects to the rest of Japanese.