A really fast thesaurus... with lots of synonyms.

(n) :
the cardinal number occurring after nine and before eleven, represented in Roman numerals as X, in Arabic numerals as 10, and in the hexadecimal system (base 16) as A. Ordinal: tenth; the number following nine

(n) :
the cardinal number occurring after nine and before eleven, represented in Roman numerals as X, in Arabic numerals as 10, and in the hexadecimal system (base 16) as A. Ordinal: tenth; the number following nine