The cardinal number that is the sum of twelve and one(noun)
WordNet. Princeton University. 2010.
Use "xiii" in a sentence
"Prophet whose story is told in 1 Kings xiii, which is directly quoted in LA."
"Father in heaven "(Ad Uxor., ii, 9); while elsewhere he speaks of the crown, the veil and the joining of hands (" De Corona "xiii," Do Virg.vel. ", ii)."
"This special prefix, m- or mu- in the singular, is associated with plant life and natural forces, such as fire and wind.xiii For example, the Swahili word for “tree” is mti."