てこ
て
こ
Meanings
1
usually written using kana alone
A rigid bar used to lift or move something by applying force at one point and pivoting on a fulcrum.
I lifted the heavy stone using a lever.
2
driving force; instrument; helper
usually written using kana alone
Figurative use: a person or thing that acts as a catalyst, tool, or assistant to bring about a result. Sense 3 (assistant/helper) is a natural extension of this instrumental meaning.
His proposal became the driving force behind the project's success.
She works actively as the president's right-hand person.
Usage patterns
- 〈事〉をてこにするto use something as leverage/a means to achieve a goal
I intend to use this failure as a lever for growth.
- てこでも動かないto be completely immovable/stubborn, no matter what force is applied
Once he makes up his mind, he won't budge no matter what.
- てこの原理the principle of leverage (physics term)
They used the principle of leverage to move the heavy rock.