set up

3 meanings

Meanings
  1. 1 start a new business, system, or organization B1
  2. 2 put something in a place or position ready to use B1
  3. 3 trick someone so they look guilty of something they did not do B2
1 set sth up

start a new business, system, or organization

B1

What does "set up" mean in this sense?

To set up something means to create or establish something so that it exists and can start working or functioning. You might set up a business, a website, an account, or a meeting — anything that needs to be organised and put in place before it can be used. This phrasal verb is very flexible and works in everyday conversation, business situations, and more formal writing. It focuses on the moment of creation or organisation, so you often use it when talking about the beginning of something. The noun form 'setup' is also very common in English, as in 'What's the setup here?'

Examples

How to use it

set up + noun object

The most common pattern — use it when the object is a noun phrase like a business, meeting, account, or committee.

They set up a charity to help young people find work.

set + pronoun + up

When the object is a pronoun (it, them, etc.), it must go between 'set' and 'up' — there is no other option.

We need a new online account — can you set it up this afternoon?

be set up

The passive form is very natural, especially when the focus is on what was created rather than who created it.

A working group has been set up to look at the problem.

set up + noun + to + infinitive

Use this pattern to explain the purpose of what is being created or established.

The government set up a new agency to manage public transport.

set yourself up as + noun

Use this reflexive pattern when someone establishes themselves in a particular role or profession.

After leaving her job, she set herself up as a freelance graphic designer.

Common Collocations

set up a businessset up a meetingset up an accountset up a committeeset up a systemset up a website

Common Mistakes

Pronoun placement

When you use a pronoun like 'it' or 'them', it must go between 'set' and 'up'. Putting it after 'up' is always wrong.

✗ I'll set up it before the meeting starts.
✓ I'll set it up before the meeting starts.
Confusing 'set up' with 'set off'

'Set off' means to begin a journey or to trigger something, not to create or establish something. The particles 'up' and 'off' give these phrasal verbs completely different meanings.

✗ They set off a new company last year.
✓ They set up a new company last year.
Missing object

In this sense, 'set up' almost always needs an object — something that is being created or established. Don't leave it out unless you are using a pronoun or a passive construction.

✗ We need to set up before the clients arrive. (when you mean establish a system or arrangement)
✓ We need to set up a system before the clients arrive.

Usage

Works in almost any context: everyday ('Can you set up the projector?'), business ('We need to set up a meeting'), and formal writing ('A committee was set up to investigate'). The noun form 'setup' is also very common.

2 set sth up

put something in a place or position ready to use

B1

Sense 2: What does "set sth up" mean?

This sense of 'set up' means to put a physical object in a particular place, usually as part of getting ready for an event or activity. It suggests careful, deliberate arrangement — not just dropping something anywhere, but placing it where it needs to be. You'll often hear it in contexts like preparing a classroom, setting up for a market stall, organising a campsite, or getting a venue ready before guests arrive. The arrangement is usually temporary, made for a specific purpose, and often involves multiple items being placed together. It's a neutral, everyday expression used just as naturally in conversation as in written instructions.

Examples

How to use it

set up + object (noun phrase)

The most common pattern — use a physical object as the direct object, placed after 'up'.

We need to set up the tables before the guests arrive.

set + object + up

With shorter noun phrases, splitting the verb and particle is very natural and often preferred.

She set the chairs up in neat rows along the wall.

set + pronoun + up

When using a pronoun instead of a noun, it must always go between 'set' and 'up'.

The marquee was delivered this morning — can you set it up near the entrance?

be set up (passive)

The passive form is very natural, especially when describing arrangements made before an event.

By the time we arrived, the stage had already been set up.

need to / have to set up + object

This phrasal verb commonly appears with modal-like expressions when talking about tasks that need doing.

We still have to set up the display before the market opens.

Common Collocations

chairstablesa tentequipmenta stagea display

Common Mistakes

Pronoun placement

Pronouns must go between 'set' and 'up', never after 'up'. Putting the pronoun at the end is ungrammatical in English.

✗ Can you set up them before the show starts?
✓ Can you set them up before the show starts?
Confusing with 'set up' meaning to establish

'Set up' has another common sense meaning to start or create something, like a business or a system. This physical placement sense is different — the object should always be a tangible item being positioned somewhere, not an organisation or plan.

✗ They set up the conference in the city centre. (if meaning they founded it)
✓ They set up the chairs and screens in the conference room. (physical arrangement)
Using 'put up' and 'set up' interchangeably

'Put up' usually suggests something more permanent or vertical, like hanging a picture or fixing a shelf. 'Set up' better describes temporary arrangements for events or activities, like positioning furniture or equipment.

✗ We put up the chairs in a circle for the workshop.
✓ We set up the chairs in a circle for the workshop.

Usage

This sense of 'set up' refers to physically placing or arranging objects, usually for an event or activity. It is neutral in register and common in both spoken and written English across British and American varieties.

3 set sb up

trick someone so they look guilty of something they did not do

B2

Sense 3: What does "set sb up" mean?

To set someone up means to deliberately trick them so that they look guilty of a crime or wrongdoing they did not actually commit. This usually involves planting evidence, lying, or carefully arranging a situation so that suspicion falls on an innocent person. The person doing the setting up often has a motive — such as protecting themselves, getting rid of a rival, or covering up their own actions. The phrase is widely used in crime stories, thrillers, and news reporting, but also in everyday conversation when someone feels they have been unfairly blamed. It is closely connected to the noun 'setup', as in 'The whole thing was a setup from the start.'

Examples

How to use it

be set up (by + person)

The passive form is the most common pattern for this sense — the innocent victim becomes the subject, and the person responsible can be added with 'by'.

The accountant was set up by a senior manager who wanted to hide the missing funds.

set + pronoun + up

When the object is a pronoun, it must go between 'set' and 'up', never after 'up'.

I know I didn't steal anything — someone set me up.

set + person + up

With a noun object, 'set up' can separate or stay together, but separation is very natural in this sense.

His own business partner set him up to take the blame for the fraud.

set + person + up + to-infinitive

A to-infinitive can follow to explain what the person was falsely positioned to do, often 'to take the blame' or 'to take the fall'.

They set up an innocent colleague to take the fall when the investigation started.

set + person + up + for + crime/event

Use 'for' to name the specific crime or accusation the person was falsely linked to.

She was convinced that a rival had set her up for the robbery.

Common Collocations

set someone up for a crimeset up by the policeset up to take the blameclaim to be set upbeen set upfeel set up

Common Mistakes

Confusing this sense with 'set up' meaning to establish

This sense of 'set up' always has a human object who is being falsely accused. If the object is a business, system, or event, 'set up' carries a completely different meaning. Check that your sentence involves deception and a person being framed.

✗ They set up a new company to take the blame.
✓ They set up a junior employee to take the blame.
Pronoun placed after the particle

When the object is a pronoun like 'him', 'me', or 'them', it must come between 'set' and 'up'. Placing the pronoun after 'up' is not correct in English.

✗ Someone set up him to make him look guilty.
✓ Someone set him up to make him look guilty.
Using a non-human object

In this sense, 'set up' always requires a human victim — the person being falsely incriminated. You cannot use it with a non-human object when the meaning is to frame someone.

✗ They set up the evidence to look suspicious.
✓ They set up the detective to look suspicious.

Usage

This sense is neutral in register and works equally well in spoken English and written narratives. The passive form ('He was set up') is extremely common, often more natural than the active form.

Frequently Asked Questions

Does 'set up' always mean to create a business or organisation?

No — it can refer to creating or arranging many different things. You can set up a meeting, a website, an online account, a fund, a committee, or even a new life somewhere. The key idea is that you are making something exist and function, whatever that thing might be.

Can 'set up' be used when talking about arranging a meeting or appointment?

Yes, this is very common. You can say 'Let's set up a meeting for next week' or 'Can you set up a call with the team?' It means to arrange or organise the meeting so that it happens.

What is the past tense of 'set up'?

'Set' is an irregular verb that does not change form — the past simple and past participle are both 'set'. So you say 'She set up a business last year' and 'The committee has been set up' — not 'setted up'.

Is 'setup' one word or two?

When you use it as a noun or adjective, it is written as one word: 'setup'. For example, 'The setup was really simple' or 'Are you happy with the setup?' When you use it as a verb, it is always two words: 'set up'.

Does 'set up' have other meanings I should know about?

Yes — 'set up' can also mean to physically assemble or prepare equipment (like a projector or tent), or, in a different context, to frame someone for something they did not do. If the object of 'set up' is a person and the context involves blame or deception, it signals that second meaning. A separate section on this page covers those other senses.

What kinds of objects can I use with this meaning of 'set up'?

This sense works with physical, tangible objects that you move and place in a specific spot — things like chairs, tables, tents, cameras, screens, and stalls. If the object is abstract (like a company or a meeting), that's a different sense of 'set up'. A useful test: can you literally pick it up and put it somewhere? If yes, this sense probably fits.

Does 'set up' always involve preparing for an event?

Not always, but it's the most common context for this physical placement sense. You'll most often hear it in situations like preparing a venue, getting a campsite ready, or arranging a room. The key idea is intentional placement — putting something where it needs to be, usually with a purpose in mind.

Can I use 'set up' without an object?

In this physical placement sense, you almost always need an object — something that is being placed or arranged. You might hear someone say 'We're still setting up' as a short form when the context makes it obvious what's being arranged, but normally the object is included.

Is 'set up' the same in British and American English?

Yes, this sense of 'set up' is used in both British and American English with the same meaning. There's no significant difference in how it's used on either side of the Atlantic.

Can 'set up' refer to something permanent, like furniture in a house?

This sense tends to suggest temporary arrangement for a specific purpose, such as an event or activity. For something permanent, like installing furniture or fixing a shelf to a wall, 'put up' or 'install' might sound more natural. If you're arranging moveable furniture in a room for everyday use, 'set up' can still work, but it carries a slight sense of preparation rather than permanent placement.

Does 'set up' always mean to trick someone? I've seen it used in very different ways.

'Set up' has several unrelated meanings depending on context. This particular sense — tricking someone into appearing guilty — only applies when the object is a person being falsely accused. If you see 'set up' with a business, piece of equipment, or arrangement as the object, it has a completely different meaning. A separate section on this page covers the other senses.

Is 'I've been set up!' a natural thing to say?

Yes, it's a very natural and common exclamation, especially in crime contexts. The present perfect passive 'I've been set up' expresses that the speaker has just realised or is claiming they were framed. It's a phrase you'll hear frequently in crime dramas and thrillers.

Is 'set up' the same as 'frame' in this meaning?

'Frame' is a single-word verb with exactly the same meaning — to falsely incriminate someone. Both are equally common and natural in speech and writing, so you can use either. 'Set up' is the phrasal verb equivalent and is perhaps more common in everyday conversation.

Can I use 'set up' in this meaning in formal writing, like a news article or legal report?

Yes, this sense of 'set up' is neutral in register and appears regularly in news reporting, crime journalism, and even legal contexts. It is not considered informal or slangy, so it works well in both written and spoken English.

What is the difference between 'set up' and 'stitch up' in this meaning?

'Stitch up' carries the same meaning of framing an innocent person, but it is mainly used in British English. 'Set up' is more internationally understood and is the safer choice if you are unsure of your audience.

Related Phrasal Verbs

start sb/sth up

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