名詞 interjection:

1. an abrupt emphatic exclamation expressing emotion
   同義詞：ejaculation
2. the action of interjecting or interposing an action or remark that interrupts
   同義詞：interposition, interpolation, interpellation

1. In grammar, an interjection is a word or a phrase used to express a strong feeling.
   文法中，感嘆語是用來表達一種強烈感情的一個字或片語。

in.ter.jec.tion

n.（名詞）
A sudden, short utterance; an ejaculation.
插話：突然的、短暫的言語；突然說出的激動言語
Abbr. interj.,int.A part of speech usually expressing emotion and capable of standing alone, such asUgh! or Wow!
縮寫 interj.,int.感嘆詞：一類通常表達感情以及能夠單獨存在的詞，例如啊 或 哇

【引伸】
in.terjec.tional
adj.（形容詞）
in.terjec.tionally
adv.（副詞）