Pronunciation: /ɒn haɪ/
adjective describes or modifies a noun or pronoun
A1 The bird flew on high in the sky.
A2 The kite soared on high above the trees.
B1 The mountain climbers reached the summit and looked down on high.
B2 The castle on high hill overlooked the entire valley.
C1 The airplane flew on high above the clouds.
C2 The astronaut gazed out at the Earth from on high in space.
adverb modifies a verb, adjective, or other adverb and typically answers the questions how, when, where, or to what extent
A1 The birds fly on high in the sky.
A2 The kite soared on high above the trees.
B1 The plane flew on high, leaving a trail in the sky.
B2 The mountain peaks on high were covered in snow.
C1 The astronaut gazed down at Earth from on high in the space station.
C2 The eagle's nest perched on high cliffs overlooking the valley.
preposition shows the relationship between a noun or pronoun and other words in a sentence
A1 The bird flew on high in the sky.
A2 The kite soared on high above the trees.
B1 The plane ascended on high into the clouds.
B2 The mountaineers reached on high to the summit.
C1 The astronaut gazed on high at the Earth from space.
C2 The eagle soared on high with majestic grace.
formal The eagle soared on high above the mountains.
informal The drone was flying on high capturing aerial shots.
slang The party was lit with everyone dancing on high energy.
figurative His spirits were on high after receiving the good news.
was on high
on highs
higher on high
highest on high
is on high
will be on high
has been on high
is being on high
on high
on high
to be on high
being on high
on high