the.com/interjection

The word that exists so 'ouch' has a job title.

means A word or phrase thrown into a sentence to express sudden emotion — things like 'wow,' 'ouch,' or 'ugh' that don't connect grammatically to anything around them.

from From Latin 'interjectio,' meaning 'a throwing between,' built from 'inter-' (between) and 'jacere' (to throw). Roman grammarians pictured these blurted words as things literally hurled into the middle of a sentence — which is exactly what 'ouch' does to a calm paragraph.

grammatical role
expresses emotion, not meaning or syntax
sentence independence
can stand alone, no verb required
punctuation magnet
usually followed by an exclamation point
ancient pedigree
latin for thrown in between
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