We don't have synonyms for interjections yet — it may be a rare, specialized, newly coined, or misspelled word. The closest thesaurus entries we have are interjection, intersection and interjectional.
(n) :
(grammar) An exclamation or filled pause; a word or phrase with no particular grammatical relation to a sentence, often an expression of emotion.
(n) :
(grammar) An exclamation or filled pause; a word or phrase with no particular grammatical relation to a sentence, often an expression of emotion.