In Italian, "î" is occasionally used in the plural of nouns and adjectives ending with "-io" as a crasis mark. Other possible spellings are "-ii" and obsolete "-j" or "-ij". For example, the plural of "vario" "various" can be spelt "vari", "varî", "varii"; the pronunciation will usually stay with only one . The plural forms of "principe" "prince" and of "principio" "principle, beginning" can be confusing. In pronunciation, they are distinguished by whether the stress is on the first or on the second syllable, but "principi" would be a correct spelling of both. When necessary to avoid ambiguity, it is advised to write the plural of "principio" as "principî" or as "principii".