Linguistische Termini - Linguistic terms

An interjection is a non-inflectable lexeme which has the distribution of a sentence and conveys the speaker's reaction to something in the speech situation or in the universe of discourse. The prototypical interjection is a particle, like Ouch! Secondarily, morphologically or even syntactically complex lexemes like Really!? or Good heavens! count as interjections.

Interjections classify by structural and semantic criteria:

A primary interjection is one lacking syntactic structure (although it may be morphologically complex).
A secondary interjection is a sentence or phrase which has phraseological status in the system and is used like a holophrastic utterance.

A deictic interjection conveys a – typically emotional – reaction to something in the speech situation.
An anaphoric interjection conveys a reaction to something said before.

This produces the following cross-classification:

structural semantic ╲	primary	secondary
deictic	Ouch!	Good heavens!
anaphoric	No.	Hear, hear!