менять vs изменить

menyat vs izmenit — replace/exchange generally vs alter something once

What it really means

Меня́ть usually means change, replace, or exchange something as a process or routine: менять деньги, одежду, пароль. Измени́ть means alter something once or produce a completed change: изменить план, мнение, расписание. Both are transitive and take the changed thing in the accusative.

These are useful contrasts but not a regular aspect pair. Изменя́ть is the standard imperfective partner of изменить in the sense alter; it also has the separate meaning be unfaithful to someone. In replacement and exchange contexts, менять commonly pairs with поменять.

Examples in natural speech

Я меняю пароль каждый месяц.
I change my password every month.
Он меняет рубли на евро.
He is exchanging rubles for euros.
Нужно изменить план.
We need to change the plan.
Она изменила своё мнение.
She changed her mind.
Не меняй тему.
Do not change the subject.

Common mistakes

Do not treat менять and изменить as a simple aspect pair in every meaning. Use менять/поменять for replacing or exchanging, and изменять/изменить for altering. Изменять кому-то can also mean be unfaithful to someone.

Memory tip

Менять often swaps one thing for another; изменить alters its state, form, plan, or direction.

Frequently asked questions

What is the difference between менять and изменить?

Менять commonly means replace or exchange, while изменить means alter something and present the change as complete. They overlap, but they are not a regular aspect pair in every use.

How do you say change the plan?

Say “изменить план” for making one change to it.

What case follows these verbs?

They take the accusative: менять пароль, изменить расписание.

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