From WordNet (r) 2.0 (August 2003) [wn]:
10th
adj : coming next after the ninth and just before the eleventh in
position [syn: tenth]
From The Collaborative International Dictionary of English v.0.48 [gcide]:
10th \10th\ adj.
1. coming next after the ninth in a series
Syn: tenth
[WordNet 1.5]