1. in heaven.

The angels on high sang His praises.

2. in the air.

The runner turned into our street holding her flag on high.

Usage notes: often with from:

You can hire a boat to explore the swamps, where monkeys chatter at you from on high.

3. someone in a position of authority.

The boss said that the new rules came from on high.

• ABCs of
• ABCs of something
• a bean counter
• a bear hug
• a beast of burden
• a belly laugh
• a Bible-basher
• abide by
• abide by something
• a big ask
• a big cheese
• a big deal
• a big fish
• a big fish in a small pond
• a big girl's blouse
• a big gun
• a big-head
• a big-mouth
• a big mouth
• a big noise
• a big shot
• a big wheel
• a billet-doux
• a bird-brain
• a bird in the hand