As fast as something or someone can go.
Once Tom caught the ball, he took off at top speed toward the end zone.
I started feeling nauseous on the way home because Kelly was driving at top speed on a windy highway.
Frequently Asked Questions (FAQs)
The idiom ‘at top speed’ means “to deal with a difficult situation without being harmed or damaged”
Example usage of idiom ‘at top speed’: Newspapers have weathered the storm of online information by providing news online themselves.