'commencement day' is correct and usable in written English.
You can use it in a sentence to refer to the day on which a formal event like a graduation ceremony takes place. For example: "I can't wait for commencement day - I'm so excited to celebrate my graduation with my family!".
WELCOME to the 2003 Smithcom Elementary School commencement day.
There is a dreamlike quality to every commencement day.
He was voted "most dependable" by his classmates, and spoke on Commencement Day in 1938.
The New Yorker, May 9 , 1925P. 28 Frank Merriwell's triumph; or, How they celebrated commencement day at dear old Police Academy.
By Charles Street The New Yorker, May 9 , 1925P. 28 Frank Merriwell's triumph; or, How they celebrated commencement day at dear old Police Academy.
By Nancy Hale The New Yorker, June 14 , 1947P. 22 A mother takes her small boy, aged six to a college on commencement day.
A University of Texas-San Antonio graduate was spotted at the 2 p.m. commencement Monday busting out a Gameboy Color during the ceremony.
President Trump's polarizing Secretary of Education Betsy DeVos will likely face a hostile crowd as she gives a keynote speech at the University of Baltimore's commencement Monday afternoon.
Graduation day and commencement are just around the corner.
With their cameras, they documented not just men wearing boutonnieres, women in dressmaker gowns and children in lace-trimmed dresses but typewriting clubs and high school cooking classes, college commencement days, businesses, Emancipation Day parades.
Sixteen test mice with symptomatic xenografted leukemia were treated with CD19L sTRAIL (24 fmol per kg over 2 days with commencement on day 6 plus 2 Gy TBI on day 7 (N = 5) or 51 fmol per kg CD19L sTRAIL over 3 days with commencement on day 10 plus 2 Gy TBI on day 11 (N = 11)).
