1. interjectionLinguistics
Wikipedia definition
2. InterjectionIn grammar, an interjection or exclamation is a word used to express an emotion or sentiment on the part of the speaker (although most interjections have clear definitions). Filled pauses such as uh, er, um are also considered interjections. Interjections are typically placed at the beginning of a sentence. An interjection is sometimes expressed as a single word or non-sentence phrase, followed by a punctuation mark.
Read “Interjection” on English Wikipedia
Read “感動詞” on Japanese Wikipedia
Read “Interjection” on DBpedia


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