determiner:a greater or additional amount or number of; extra
We need more time to finish.
pronoun:a greater or additional amount or number (without naming the thing)
If you want more, ask for it.
adverb:to a greater extent or degree; further
She exercises more in the summer.
adverb:used with an adjective or adverb to form the comparative degree
This interface is more intuitive than the old one.
