Definition that contains 50th
- golden wedding anniversary the 50th wedding anniversary
- semicentennial of or relating to or marking the 50th anniversary
- semicentenary the 50th anniversary (or the celebration of it)
- hawaii standard time standard time in the 10th time zone west of Greenwich, reckoned at the 150th meridian west; used in Hawaii and the western Aleutian Islands
- semicentenary of or relating to or marking the 50th anniversary
- hawaii time standard time in the 10th time zone west of Greenwich, reckoned at the 150th meridian west; used in Hawaii and the western Aleutian Islands
- sesquicentennial the 150th anniversary (or the celebration of it)
- semicentennial the 50th anniversary (or the celebration of it)