semicentennial

the semicentennial celebration was a grand affair.

they published a book to commemorate the semicentennial of the organization.

the city planned various events for its semicentennial anniversary.

semicentennial milestones are important for historical reflection.

they invited many guests to the semicentennial gala.

the semicentennial report highlighted key achievements.

planning for the semicentennial took several years.

students created projects to honor the semicentennial of their school.

the semicentennial event attracted media attention nationwide.

semicentennial celebrations often include speeches and performances.