i'm sorry i can't spell the -----(nine)word

i'm sorry i can't spell the -----(nine)word
i'm sorry i can't spell the -----(nine)word

i'm sorry i can't spell the -----(nine)word
i'm sorry i can't spell the ninth word.
基于以下考虑：
一般在数字单词前不会加"the",而在表示“第几”等序数词时,且前面没有人称的情况下一般就要加the,句中是“word”而不是“words”,也从另一角度证明不可能用nine.
ninth是nine的序数词,第九.