請願 is read as せいがん (seigan) and means petition.
せいがん
seigan
せいがんしょ
(written) petition
せいがんけん
right to petition (the government)
せいがんしゃ
petitioner
せいきゅう
claim
うけおい
contract (for work)
こう
to pray
せいきゅうけん
claim rights
うけおう
to contract
せいたく
solicitation
うけおいぎょう
the contracting business
うけあう
to undertake
うけおいにん
contractor