Word Study
xxi
WORDNET DICTIONARY
Noun xxi has 1 sense
- xxi(n = noun.quantity) 21, twenty-one - the cardinal number that is the sum of twenty and one; Array is a kind of large integer
Adjective xxi has 1 sense
- xxi(s = adj.all) 21, twenty-one - being one more than twenty; Array
For further exploring for "xxi" in Webster Dictionary Online