idioms using “high”

High on

To be very supportive of

“The university-age voters were high on the presidential candidate who promoted environmental causes.”

High-end

Upscale, appealing to wealthy shoppers

“Omote-Sando Avenue is filled with high-end boutiques.”

In high gear

Working at maximum capacity

“The software development team has been working in high gear to finish the product by the end of the year.”

On his (or her) high horse

Having a snobbish or arrogant attitude

“She has been on her high horse ever since she became engaged to the company president’s son.

High roller

A person who gambles a lot of money

“Macao is trying to attract high rollers from all over Asia to its casinos.”