Added 9 October 2026 xc noun Categories: Describing WordsRare Words noun ! Definition from WordNet 3.1, Princeton University. More about xc at Wordnik → Where our words come from → The cardinal number that is the product of ten and nine. adjective Being ten more than eighty. Related Words: cardinal90ninetyskiingpsalmcrosscountryiii7771atcl Back to today's word