政道 is read as せいどう (seidou) and means politics.
せいどう
seidou
せいじどうとく
political morality
ちゅうどうせいとう
centrist party
しんとうせいじれんめい
Shinto Political League
せい
rule
せいじ
politics
せいかい
(world of) politics
せいじか
politician
せいけん
(political) administration
せいきょく
political situation
せいけい
politics and economics
せいむじかん
deputy minister
せいむ
government affairs