Noun, Suru verb, Transitive verb, Noun which may take the genitive case particle 'no'
1. celebration; congratulations
Jreibun
父は、卒業した小学校の
そうりつ創立
そごじゅっしゅうねん/ごじっしゅうねん50周年
の
きねんしゅくがかい記念祝賀会
に
どうきゅうせい同級生
と参加するのを楽しみにしている。
My father is looking forward to attending the celebration of the 50th anniversary of the foundation of the elementary school he graduated from and spending time with his classmates.