no hi is not a sentence because a sentence has a SVO (subject verb and object)
Hi is just a subject it needs a verb with it
the shovel said hi
Hi unkept beard looked scropulous.
hi
My babysitter just arrived, "Hi I'm your babysitter" Is that the babysitter?
No. < That was a sentence without a verb.
hi, im really high.
hi
Hi i love souffles.
Hi, my name is Amanda and his name is Bob.
Hi!
hi im se
hi people lol
Only at the beginning of the sentence.
hi my name is tanka.
hi my name unsociable
Like this: Hi, my name is Bob. Hi, Im unobtrusively Joey. MOO.
Hi There are many ways to use "there" in a sentence. OOps I just used one.