Translation guide
How to express that one thing takes the place of another, temporarily or permanently, in Japanese.
To say that someone is filling in for another person, such as at work or in a role.
A common and versatile way to say 'substitute for (someone)'. The person being replaced is marked with の.
I'm substituting for Mr. Tanaka today.
He substituted for me.
More formal, often used in business or official contexts. Implies acting on behalf of someone.
I will attend the meeting as a substitute for the department head.
Borrowed from baseball, used casually for stepping in at the last minute.
I substituted for a colleague who suddenly took the day off.
To say that you are using a different item or ingredient because the original is unavailable.
The standard pattern for 'use A as a substitute for B'. The thing being replaced is marked with の代わりに.
I used margarine as a substitute for butter.
Can I use soy milk as a substitute for milk?
A slightly more formal or technical way to say 'substitute with'. The substitute item is marked with で.
You can substitute honey for sugar.
Literally 'change A to B', used when swapping one thing for another. Less common for 'substitute' but possible.
I tried substituting rice flour for wheat flour.
To say that someone or something has been replaced, often in a role or function.
Means 'to take the place of' or 'to supplant'. Often used when something new replaces something old.
New technology has substituted for the old methods.
Intransitive verb meaning 'to be replaced' or 'to change places'. Focuses on the swap itself.
Transitive verb meaning 'to replace' or 'to exchange'. Often used in set phrases.
To say that something functions as a substitute without specifying who does the substituting.
代わり (kawari) is the most general and common word for 'substitute'. 代理 (dairi) is specifically for representing a person in an official capacity. 代用 (daiyou) is for using one thing in place of another, often with a nuance of making do.
I cooked in place of my mother.
I gave a speech as a substitute for the company president.
I used salt as a substitute for soy sauce.
The English pattern 'A substitutes for B' is not directly translated with ために. Use 代わりをする or 代わりになる instead. 'ために' expresses purpose, not substitution.
The members were substituted (for new ones).
Nothing can substitute for a life.