Horsepower
noun
This word was probably made pretty recently. A horse's power? That is horsepower.
This is a jukugo word, which usually means on'yomi readings from the kanji. Since 力 has two common on'yomi readings, here's a mnemonic to help you remember which one to use:
Cars with high horsepower are usually driven by Ricky (りき). Ricky is well-known for loving all cars with a lot of horsepower, so he's often seen driving around in fancy sports cars. Vroom vroom Ricky!
スポーツカーは、高い馬力を持っています。
Sports cars have high horsepower.
会社用に馬力があるエアコンを買った。
I bought an air conditioner that has some horsepower for the company.
一馬力の力の大きさは一体どのくらいですか?
How much power is actually in one horsepower?