| Eightieth (a.) The next in order after seventy-ninth. |
| Eightieth (a.) Consisting of one of eighty equal parts or divisions. |
| Eightieth (n.) The quotient of a unit divided by eighty |
| eightieth | positionin a countable series of things |
| eightieth th | the ordinal number of eighty in counting order |
| hundred-and-eightieth th | the ordinal number of one hundred eighty in counting order |