As nouns the difference between high and expert
is that
high is (obsolete) thought; intention; determination; purpose or
high can be a period of euphoria, from excitement or from an intake of drugs while
expert is (
label) rate assessor.
As an adjective high
is elevated in position or status; above many things.
As an adverb high
is in or to an elevated position.
As a verb high
is (obsolete) to rise or
high can be to hie; to hasten.