"Hey" (like "hello" or "say") is an interjection or exclamation. It has no sentence structure but its context can sometimes be implied by its tone.
Example : Startled by the dropped oar, the boatman said "Hey!" and looked up at me.
The interjection in the sentence is "Hey." It is used to call attention or express surprise.
like you can say example: hey do you think i wrote a good sentence?
hey girl what are you doing
Hey there, can you tell me how to get to First Street.
No, it is not a conjunction. It is an interjection(exclamation). The single spoken word "Hey!" can have a variety of applications.
The interjection in the sentence is "Hey." It is used to call attention or express surprise.
Hey
Hey
Hey Dude!
like you can say example: hey do you think i wrote a good sentence?
hey, are you mavericking already?
hey I like this it is apoplectic!
Hey Zenith! Awesome! LOLZ
Hey, do you know what omnidirectional means?
hey hey hey i love you hey hey hey i love you hey hey hey baby hey hey hey baby ha ha ha lol ha ha ha lol ha ha ha blah blah blah ha ha ha blah blah blah
Hey Sorry Man, I was just jocund
hey how u disinterred.