Meaning of the word "in high gear" in English

What does "in high gear" mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

in high gear

US /ɪn haɪ ɡɪr/
UK /ɪn haɪ ɡɪər/
"in high gear" picture

Idiom

operating at maximum speed or efficiency

Example:
The factory has been in high gear since the new order came in.
Our marketing team is in high gear preparing for the product launch.