background

background — noun

1. whatever sits further from the viewer in a picture, photo, or scene — the surfac

1.nounB2
Definition

whatever sits further from the viewer in a picture, photo, or scene — the surface or area that frames whoever or whatever is the main subject.

Example

In Camille's wedding photo, snowy mountains rise in the background.

phrase: in the background

The artist painted Tariq against a deep red background.

pattern: against a [colour] background

Common collocations
  • in the background
  • against a white background
  • plain background
  • blurred background
Synonyms
  • backdrop

    often the painted or hung surface behind a stage or photo subject

  • setting

    broader: the whole surroundings, not just what is behind

Antonyms
  • foreground

    the part of a picture nearest the viewer

Grammar Patterns

in the background

against a [colour] background

Usage Note

Frequently appears in the fixed phrase 'in the background' and after prepositions like 'against'. Contrast with sense 7 (computer wallpaper) and sense 5 (low-attention position).

Common Mistakes

On the background of the photo there is a tree.
In the background of the photo there is a tree.
the standard preposition is 'in', not 'on'.

2. quieter sounds, especially music or voices, that you can hear while something lo

2.nounB2
Definition

quieter sounds, especially music or voices, that you can hear while something louder or more important is happening.

Example

Soft jazz played in the background while the diners chatted.

collocation: play in the background

I could hear a baby crying in the background of Quinn's phone call.

Common collocations
  • background music
  • background noise
  • background chatter
  • play in the background
Synonyms

Grammar Patterns

in the background

Usage Note

Often forms compound nouns: 'background music', 'background noise', 'background chatter'. Distinguish from sense 1 (visual) — this sense is purely auditory.

Common Mistakes

There was a background music playing.
There was background music playing.
'background music' is uncountable, so no 'a'.

3. earlier events and surrounding conditions that explain why a particular situatio

3.nounB2
Definition

earlier events and surrounding conditions that explain why a particular situation developed the way it did.

Example

The journalist explained the political background to the protests in Hong Kong.

pattern: background to [event]

Against this background of rising prices, many families cut back on travel.

phrase: against a/the background of

Common collocations
  • historical background
  • political background
  • the background to
  • against this background
Synonyms
  • context

    more general; can apply to any situation, not just history

  • circumstances

    focuses on conditions surrounding the event

Grammar Patterns

the background to/of [event]

against a/the background of

Usage Note

Used with prepositions 'to' and 'of' to link to a specific event. Distinguish from sense 4 (general explanatory information not tied to one event) and sense 6 (a person's life history).

Common Mistakes

Tell me the background for the war.
Tell me the background to the war.
link with 'to' or 'of', not 'for'.

4. the basic facts about a topic that someone needs to know in order to understand

4.nounB2
Definition

the basic facts about a topic that someone needs to know in order to understand it properly.

Example

Dr. Una gave us some background on the experiment before we began.

pattern: background on [topic]

The article provides useful background for readers new to the subject.

Common collocations
  • background information
  • background reading
  • give some background
  • provide background
Synonyms
  • briefing

    usually spoken and given before a task or meeting

  • primer

    more formal; an introductory overview

Grammar Patterns

background on [topic]

background information

Usage Note

Often paired with 'information', 'reading', or 'briefing'. Differs from sense 3 in scope: sense 3 explains a specific event's causes, while this sense supplies general orientation on a topic.

Common Mistakes

I need backgrounds on this topic.
I need background on this topic.
uncountable, so no plural.

5. a position where a person or thing is not the focus of attention — for example,

5.nounC2
Definition

a position where a person or thing is not the focus of attention — for example, a quiet team member at a meeting, or an issue people have stopped paying attention to.

Example

The CEO prefers to stay in the background and let her managers speak.

phrase: stay in the background

The privacy debate has faded into the background since the election.

phrase: fade into the background

Common collocations
  • stay in the background
  • fade into the background
  • remain in the background
  • slip into the background
Synonyms
Antonyms

Grammar Patterns

in the background

stay/remain/fade into the background

Usage Note

Almost always in fixed phrases with verbs of motion or staying: stay / remain / fade / slip / drop into the background. Subject is usually a person, role, or topic — not a physical object.

Common Mistakes

She likes to be at the background.
She likes to stay in the background.
the preposition is 'in', and a verb of staying is needed.

6. the kind of family someone grew up in, plus their school history, jobs, and life

6.nounB1
Definition

the kind of family someone grew up in, plus their school history, jobs, and life experience.

Example

Tariq comes from a working-class background in northern Taiwan.

pattern: from a ... background

The school welcomes children from many different cultural backgrounds.

collocation: cultural / ethnic background

Common collocations
  • family background
  • cultural background
  • educational background
  • background in [field]
Synonyms
  • upbringing

    focuses on how a person was raised by their family

  • history

    broader; covers more than just family and education

Grammar Patterns

a [adj] background

from a ... background

Usage Note

Common adjective + background pairs: family, cultural, ethnic, educational, working-class, musical. Use 'background in [field]' for professional experience.

Common Mistakes

She has a background of teaching.
She has a background in teaching.
the field is introduced by 'in', not 'of'.

7. the picture or colour shown on a phone or computer screen, behind any icons, app

7.noun
Definition

the picture or colour shown on a phone or computer screen, behind any icons, apps, or open windows.

Example

Camille set a photo of her dog as the background on her laptop.

collocation: set as the background

You can change the background by long-pressing on the home screen.

collocation: change the background

Common collocations
  • change the background
  • set as background
  • desktop background
  • phone background
Synonyms

Grammar Patterns

change/set the background

Usage Note

Synonymous with 'wallpaper' in everyday speech, especially on phones. Distinguish from sense 8 (background tasks/processes).

8. an app, task, or program that keeps running on a device while the user is busy w

8.noun
Definition

an app, task, or program that keeps running on a device while the user is busy with something else on the screen.

Example

The music app keeps playing in the background while Tariq checks his email.

phrase: run in the background

Too many background apps were draining Quinn's phone battery.

compound noun: background apps

Common collocations
  • run in the background
  • background app
  • background process
  • background sync
Synonyms
Antonyms
  • foreground

    the app or task currently shown on screen

Grammar Patterns

run in the background

background app/task/process

Usage Note

Usually appears with verbs like 'run', 'play', 'sync', or 'upload' plus 'in the background'. Distinguish from sense 7, which refers to the visible image, not active tasks.

Common Mistakes

The app runs on the background.
The app runs in the background.
the preposition is 'in'.
Idioms

To act in a quiet way so that other people do not pay attention to you.

At the party, Tom tried to merge into the background.

Did Maya merge into the background during the meeting?

background — adjective

background — verb

Word family

  • backdrop
    nounC1
  • foreground
    nounC1
  • foreground
    verbC2

Synonym discussion

Sense: noun/6

When talking about a person's life story, these four words divide the territory neatly. 'Background' is the broadest in this group: it covers family, education, jobs, and culture all at once, which is why job interviews ask candidates to 'tell us about your background'. 'Upbringing' zooms in on childhood and how parents raised you — values, manners, religion — and stops there; you would not say a 40-year-old's career counts as their upbringing. 'History' tilts toward documented facts and timelines, often medical or legal ('a history of asthma', 'a criminal history'), and feels more neutral than personal. 'Experience' is the narrowest: it points only at what someone has actually done, especially in work. So Pia has a background in engineering (full picture), an upbringing in a quiet village (childhood), no criminal history (record), and ten years of experience writing code (track record).

Common collocations

Nouns

  • background music
  • background noise
  • background information
  • background check
  • background process
  • background image

Adverbs

Phrases

  • fade into the background
  • stay in the background
  • against this background
  • do background reading
  • run in the background

Prepositions

  • in the background
  • against the background of
  • from a [adj] background
  • background to
  • background on

Etymology

Old EnglishMiddle EnglishModern English

The word formed in 17th-century English by joining 'back' (the rear part) with 'ground' (an area of land or surface). It first named the rear part of a stage or scene in painting, then extended naturally to the rear of any picture. By the 19th century it had stretched into figurative uses — the events behind a situation, and the personal history shaping someone's life. The 20th-century rise of computing added two fresh senses: the image behind screen icons, and the tasks running behind the active app. Each new technology has simply borrowed the older spatial idea: whatever sits behind the main thing.