especial不是名詞,是形容詞。
例句
1、
The lecture will be of especial interest to history students.
學歷史的學生會對這個講座特別有興趣。
2、
The authorities took especial interest in him because of his trade union work.
因為他在工會工作,官方對他特別感興趣。
3、
This is a matter of especial importance.
這是一件特別重要的事情。