adjective:of great vertical extent; measuring a long distance from the bottom to the top
They live in a building with very high ceilings.
adverb:at or to a great height; upward
The balloon rose high into the sky.
adjective:intense, extreme, or strong in degree
The city experienced a high level of humidity during the summer.
adjective:under the influence of alcohol or drugs; intoxicated
He was still high from the pain medication.