Translation guide
Expressing the idea of moving or operating at maximum speed or capacity.
He ran at full speed.
The car sped away at full speed.
Literally 'with full power', often used for physical effort or metaphorical full effort, but can also mean full speed in context.
Run at full speed!
Loanword from English, common in casual or technical contexts.
He ran at full speed.
Means 'at a furious speed', emphasizing intensity. More dramatic.
He dashed away at full speed.
Describing a machine, system, or process running at its highest possible rate.
Expressing that someone is putting all their energy into an activity, not necessarily physical speed.
全速力 (zensokuryoku) specifically means 'full speed' and is best for physical movement. 全力 (zenryoku) means 'full power/effort' and is broader, often used for effort rather than literal speed. However, they overlap in many contexts.
run at full speed
do one's best with full effort
The project is moving forward at full speed.
He finished the work at full speed.