| lxx | adj. the Roman numeral representation of seventy; seven times ten; -- a determinate quantifier. |
| lxxx | adj. the Roman numeral representation of eighty; eight times ten; -- a determinate quantifier. |
| xxx | adj. [ by reduplication of the "X" used in some movie-rating systems. ] Very obscene or pornographic. |
| xxx | adj. The Roman number representing thirty; -- in the postposition, designating the thirtieth in a series. |
| xxx | Where is the XXX department? |
| xxx | (n) (genetics) abnormal complement of three X chromosomes in a female |