an interjections would be short exclamations such as, "ah" or "oh" before an actual usage of a complete sentence. examples include: "Ah, it feels great in here." "Oh, I didn't realize that until just...
Interjections are words that expresses your strong feeling. The punctuations are comma (,) and exclamation mark(!). the examples are: phew! wow! oh! hush! ha! hurray! ouch! eek! yuck!