Separate vs We split them up

When to use each in English, with meaning, register, and examples.

Separate

Top 1,000 (very common)A2adjective

We split them up

Top 2,000 (common)
Most common: Separate
 SeparateWe split them up
Pronunciation🇬🇧 /["/ˈseprət/"]/🇺🇸 /["/ˈseprət/"]/🇬🇧 //wi splɪt ðɛm ʌp//🇺🇸 //wi splɪt ðɛm ʌp//
MeaningTo put things apart from each other.We separate them.
ExampleIt's important to keep the separate components of the experiment organized.They decided to split them up for the group project.
RegisterNeutralNeutral
How commonTop 1,000 (very common)Top 2,000 (common)
CEFR levelA2-
Part of speechadjective
Collocationsbe, become, remain, somewhat, very, essentially, from, go your separate ways, be, become, remain, somewhat, very, essentially, from, go your separate wayssplit up a team, split up into groups, split them up quickly
Antonymscombine, join, unite-
Common mistakes'Seperate' is a common misspelling., 'Separating' is sometimes incorrectly used with a direct object when it should not be.Confusing 'split up' with 'break up' only in romantic contexts., Using it with an inanimate object when referring to people., Incorrectly using 'split them' without 'up'.
Usage notesUse 'separate' when discussing dividing items or concepts. It's neutral, suitable for both written and spoken contexts. Avoid in overly casual conversations.Common in informal contexts, especially when discussing relationships or groups. Avoid in formal writing.

See it in real clips

Separate
We split them up

Frequently asked questions: Separate vs We split them up

What's the difference between Separate and We split them up?

Separate: To put things apart from each other. We split them up: We separate them.

Which is more common: Separate and We split them up?

Separate is the most common in everyday English.

Can you show an example of each?

Separate: It's important to keep the separate components of the experiment organized. We split them up: They decided to split them up for the group project.

Can I use Separate and We split them up interchangeably?

Not always. Separate and We split them up are related and overlap in some contexts, but they differ in register, how common they are, and usage, so swapping one for another can change the meaning or tone. Check the differences above before substituting.

Related comparisons