This is the 9910th most frequent Japanese word.
請願
"請願" (せいがん, seigan) means "petition" or "formal request."
In this sentence, '請願' (seigan) refers to a formal petition or appeal, specifically presented by a community group to address environmental concerns.
市民団体が環境保全に関する請願を提出した。
The civic group submitted a petition regarding environmental protection.
Here, '請願' signifies the petition as the subject of parliamentary debate, indicating its official context.
議会で請願が議論された。
The petition was discussed in the assembly.
In this instance, '請願' is used to denote the petition being actively supported by collecting public endorsements.