How to say "substitution" in Japanese
Choosing the right word
- 代替だいたいnoun, suru verb, transitive verbGeneral substitution, often of one thing or means for another. A neutral, abstract choice for substitutions of materials, energy sources, plans, and similar items in formal or written contexts.
- 代用だいようsuru verb, transitive verb, no-adjectiveSubstitution in the sense of using one thing in place of another that is unavailable, such as a substitute ingredient or material. Focuses on the practical act of using a stand-in for the intended item.
- 身代わりみがわりnounSubstitution for someone else — a person who takes another's place, whether enduring harm, paying a price, or acting as a stand-in. It also covers the scapegoat sense, so it is specifically about people, not things.
- 入れ替わりいれかわりnounSubstitution as shifting or change, where one thing takes the place of another in succession, such as people or things replacing each other over time. The nuance is of exchange or turnover rather than deliberate substitution.
- 入れ替えいれかえnoun, suru verb, transitive verbSubstitution in the sense of replacement — actively swapping out members, equipment, or contents for new ones. Best when the English meaning is closer to replacing or changing than to substituting one item for another.
Use 代替 or 代用 for the general sense of substitution, 「身代わり」 for a person acting or suffering in someone's place, and 「入れ替わり」 or 「入れ替え」 when the sense shades into replacing or swapping things.
Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only
Japanese equivalents
See also
This browser can't play pronunciations (needs Safari 18.4 or later, or Chrome / Edge / Firefox).
