The Collaborative International Dictionary of English v.0.48:
lxxx \lxxx\ adj. the Roman numeral representation of eighty; eight times ten; -- a determinate quantifier. Syn: eighty, 80, fourscore. [WordNet 1.5]WordNet (r) 3.0 (2006):
lxxx adj 1: being ten more than seventy [syn: eighty, 80, lxxx, fourscore] n 1: the cardinal number that is the product of ten and eight [syn: eighty, 80, LXXX, fourscore]