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Prepositions after adjectives

Outside with prepositions

Outside is not usually followed by a fixed preposition. Most combinations depend on the larger phrase, such as outside of the city or outside with friends.

Quick answer

How does outside combine with prepositions?

Outside commonly appears in phrases like outside of, outside the building, or outside with friends. Prepositions such as in, with, to, and for usually belong to the wider sentence rather than directly to outside.

outside of London
The children are outside with their teacher
She waited outside for a taxi

Choose the pattern by meaning

These forms are not interchangeable. Choose the construction by meaning, not by which preposition appears most often.

1
outside of + place/topic

Showing external position or exclusion

Outside of is common in American English and also appears in other varieties.

outside of town
This issue is outside of my experience
2
outside + place

Referring to a location

Outside can directly describe position without another preposition.

They are waiting outside the station
We met outside the museum
3
outside with + person

Describing company outdoors

With introduces the person accompanying someone outside.

He is outside with the dog
The coach stayed outside with the players
4
outside for + purpose

Showing reason or purpose

For explains why someone is outside.

She stepped outside for some air
They went outside for lunch

See the difference in context

The same subject can take different constructions because each sentence answers a different question.

Construction
Example
Meaning
outside in
People outside in the garden could hear us.
In belongs to the location phrase, not directly to outside.
outside with
The children are outside with their parents.
With introduces company or accompaniment.
outside of
The house is outside of the city.
Standard phrase meaning beyond or not within.
outside to
She ran outside to answer the phone.
To introduces purpose after outside.
outside for
He stepped outside for a break.
For explains purpose or reason.

Common mistakes

Some combinations appear in real text but do not mean what learners often assume.

Treating outside as an adjective in every case

Outside is often an adverb or preposition.

✕ The outside of waiting crowd ✓ The crowd waiting outside

Adding unnecessary of

Outside alone is often enough before a place noun.

✕ outside of the building in every context ✓ outside the building

Using outside to mean except

Use apart from or except in many formal contexts.

✕ Outside grammar, she teaches history. ✓ Apart from grammar, she teaches history.

Quick practice

Choose the expression that matches the intended meaning.

1. They waited ___ the cinema after the film.
2. She stayed outside ___ her friends.
3. The village is outside ___ the national park.

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Frequently asked questions

Is outside of correct English?

Yes. It is standard, especially in American English.

Can outside be used without a preposition?

Yes. Outside often directly introduces a place noun, as in outside the hotel.

Does outside always function as an adjective?

No. It can also be an adverb, noun, or preposition depending on the sentence.

obedient-to-unto-in-by, of "objective in" or "objective about"? "obligatory for" or "obligatory on"? "oblivious to" or "oblivious of"? observable in, by, from, to or on? obsessed with, by, about, in or over? obsessive about, in, over, with or to? "obsolete in" or "obsolete by"? "obtainable in" or "obtainable from"? "obvious to", "obvious from" or "obvious in"? odd to, for, about, in or on? offensive to, in, against, on or about?

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