| semicentennial | (n) the 50th anniversary (or the celebration of it), Syn. semicentenary |
| semicentennial | (adj) of or relating to or marking the 50th anniversary, Syn. semicentenary |
| Semicentennial | a. Of or pertaining to half of a century, or a period of fifty years; |
| Semicentennial | n. A fiftieth anniversary. [ 1913 Webster ] |
| 五十年祭 | [ごじゅうねんさい, gojuunensai] (n) jubilee; semicentennial [Add to Longdo] |