Translation guide
The concept of increasing speed or the rate of change of velocity. In Japanese, this is expressed through nouns, verbs, and technical terms depending on context.
Expressing that something is speeding up or the act of increasing speed, in everyday contexts.
The most common noun meaning 'acceleration' or 'speeding up'. Can be used as a suru-verb (加速する) to mean 'to accelerate'.
The car suddenly accelerated.
Acceleration of economic growth is expected.
Literally 'to raise speed'. A natural verb phrase for increasing speed.
He increased the car's speed.
Referring to the scientific concept of acceleration as a vector quantity.
The technical term for 'acceleration' in physics. Often used in compound terms like 加速度運動 (accelerated motion).
Acceleration is a vector quantity.
Describing how fast a car, motorcycle, etc. can increase speed, often in reviews or specs.
加速 (kasoku) is the general term for speeding up, while 加速度 (kasokudo) specifically refers to the physical quantity of acceleration. Use 加速 for everyday situations and 加速度 in scientific contexts.
While 加速 is the direct equivalent, in some contexts English uses 'acceleration' where Japanese might use a different expression. For example, 'acceleration of a process' might be 促進 (sokushin) rather than 加速.
Loanword from English 'speed up'. Used as a noun or suru-verb. Common in business or casual contexts.
We need to speed up the work.
Gravitational acceleration is about 9.8 m/s².