The phrase "thirtieth anniversary" refers to the 30th year of a specific event or occasion. It signifies celebrating or recognizing the milestone of 30 years since that event or occasion occurred. Full definition
With his extensive experience as a curator and arts administrator, we are confident James can lead us into our upcoming thirtieth anniversary with a vision that will further expand the collective's emphasis on experimental art and diversity.» (voxpopuligallery.org)
As Archbishop Charles J. Chaput of Denver observed on Humanae Vitae's thirtieth anniversary in 1998, «Contraception has released males — to a historically unprecedented degree — from responsibility for their sexual aggression.» (firstthings.com)
Thirtieth Anniversary Tribute Edition While the movie clocks in at a fat two - and - a-half hours, the extra features are rather lean. (parentpreviews.com)