Subject
noun / adjective / verb Base: subject | Past: subjected | Past Participle: subjected | -ing: subjecting | 3rd person: subjects
Definition
1. The topic being discussed or studied.
2. An area of knowledge studied at school.
3. The grammar term for the doer of the action in a sentence.
4. A citizen of a country with a king or queen.
5. A person used in an experiment.
6. The person or thing shown in artwork.
7. Likely to be affected by something.
8. Depending on something happening first.
9. To force someone to experience something unpleasant.
10. To bring a country under control by force.
2. An area of knowledge studied at school.
3. The grammar term for the doer of the action in a sentence.
4. A citizen of a country with a king or queen.
5. A person used in an experiment.
6. The person or thing shown in artwork.
7. Likely to be affected by something.
8. Depending on something happening first.
9. To force someone to experience something unpleasant.
10. To bring a country under control by force.
Context Alive
The conversation was getting awkward and nobody knew what to say next. She quickly changed the subject to something lighter and everyone relaxed. Within minutes, the whole table was laughing about holiday plans.
Meanings
10 meanings 1 The Topic Being Discussed, Considered, or Studied (Noun) Very Common ▼
This meaning is about what someone is talking about, writing about, or thinking about — the theme or topic. Imagine sitting at dinner when someone suddenly brings up politics. Half the table wants to talk about it, the other half doesn’t. That’s the subject of conversation — what everyone is focused on. This is a subject — the central topic. You might say “let’s change the subject” or “that’s a touchy subject — be careful.” Or think about a documentary where the subject is climate change — everything in the film revolves around that one topic. The word points to whatever is at the centre of attention. ✏️ “Change the subject” and “on the subject of” are extremely common expressions you’ll hear in everyday conversation.
Vivid ExampleEvery time she tried to talk about the wedding, he quickly changed the subject to football. She knew he was nervous about the planning. Eventually she sat him down and said they needed to discuss it properly.
2 An Area of Knowledge Studied at School or College (Noun) Very Common ▼
This meaning is about the different topics you study in school — like math, history, or science. Imagine a student filling out their timetable at the start of the year, choosing which subjects to take. They pick biology because they love animals and drop geography because they find it boring. This is a subject — a specific area of learning. You might say “my favourite subject is English” or “she’s taking six subjects this year.” Or think about a teacher who teaches three different subjects at the same school. The word refers to an organised branch of knowledge. ✏️ In British English, “subject” is used for school topics. In American English, people also use “class” — “my favourite class” means the same thing.
Vivid ExampleHe had always been terrible at math, but it was a compulsory subject at his school. He struggled through it for years before discovering that he actually loved physics. Sometimes the subject you hate leads you to the one you love.
3 The Doer of the Action in a Sentence — Grammar Term (Noun) Common ▼
This meaning is about grammar — the word or words in a sentence that perform the action. Imagine reading the sentence “The dog chased the cat.” Your teacher asks “What’s the subject?” The answer is “the dog” — because the dog is doing the chasing. This is the subject — the part of the sentence that acts. You might hear “identify the subject and the verb” or “‘she’ is the subject in ‘she runs every morning.'” Or think about the sentence “Rain fell heavily” — “rain” is the subject because it’s what fell. The word describes the grammatical role of the actor in a sentence. ✏️ The subject usually comes before the verb in English — “Tom (subject) ate (verb) the pizza (object).” This basic pattern is the backbone of English sentences.
Vivid ExampleThe English teacher wrote a simple sentence on the board and asked the class to find the subject. Half the students pointed at the wrong word. She smiled and explained that the subject is always the one doing the action.
4 A Citizen of a Country with a King or Queen (Noun) Common ▼
This meaning is about being a person who lives under a monarch — a king or queen. Imagine watching a historical drama where the king stands on a balcony and addresses his people. He calls them “my loyal subjects” — meaning the people under his rule. This is a subject — someone who belongs to a kingdom or monarchy. You might hear “she is a British subject” or “the king’s subjects celebrated the coronation.” Or think about old laws that applied to “all subjects of the Crown.” The word suggests a relationship between ruler and people. ✏️ Today, “citizen” is much more common in everyday speech. “Subject” sounds formal or old-fashioned, but it still appears in legal and official language.
Vivid ExampleThe museum exhibit showed life in the 18th century under the British monarchy. The subjects of the Crown lived very different lives depending on their social class. Some enjoyed enormous wealth while others struggled to survive.
5 A Person Used in an Experiment or Study (Noun) Common ▼
This meaning is about a person who is being tested, observed, or studied as part of research. Imagine a university running a sleep study. They recruit fifty subjects — volunteers who agree to be monitored while they sleep. Each subject wears sensors and follows a strict bedtime routine. This is a subject — someone being examined for research. You might hear “the test subjects were given a placebo” or “each subject was asked to fill out a questionnaire.” Or think about a psychology experiment where subjects are observed through a one-way mirror. The word treats the person as part of a scientific process. ✏️ “Test subject” and “research subject” are common combinations — they describe anyone participating in a formal study or experiment.
Vivid ExampleThe researchers needed two hundred volunteers for their new vaccine trial. Each subject was carefully screened before being accepted into the study. They were monitored weekly for any changes in their health over six months.
6 The Person or Thing Shown in a Painting, Photograph, or Artwork (Noun) Less Common ▼
This meaning is about what an artist paints, draws, or photographs — the focus of their creative work. Imagine a portrait painter working in a studio. A woman sits perfectly still in a chair while the artist captures her face on canvas. She is the subject — the person being depicted. This is using subject to mean the visual focus of artwork. You might hear “the subject of the painting is a young woman” or “landscapes are his favourite subjects.” Or think about a photographer choosing their subject carefully before pressing the shutter. The word points to whatever the artwork is about. ✏️ In photography, “subject” is essential vocabulary — “keep your subject in focus” means make sure the main thing you’re photographing is sharp and clear.
Vivid ExampleThe art student spent weeks choosing the perfect scene for her final project. In the end, her subject was an old fisherman mending his nets by the harbour. The painting captured every wrinkle on his face and the light in his eyes.
7 Likely to Be Affected by Something, Especially Something Bad (Adjective) Very Common ▼
This meaning is about being vulnerable to something or likely to experience it — especially something negative. Imagine living near a river that floods every spring. Your house is subject to flooding — it’s at risk every year. This is being subject to something — exposed to the possibility of it happening. You might hear “prices are subject to change” or “the area is subject to earthquakes.” Or think about a person with allergies who is subject to sudden reactions when the pollen count is high. The word suggests an ongoing vulnerability. ✏️ “Subject to change” is one of the most common uses — you’ll see it on menus, tickets, and websites meaning “this might change without warning.”
Vivid ExampleThe small print on the ticket said all flight times were subject to change without notice. Sure enough, her departure was delayed by three hours. She wished she had read the fine print before booking a tight connection.
8 Depending on Something Happening First (Adjective) Common ▼
This meaning is about something that can only happen if a certain condition is met first. Imagine you’ve agreed to buy a house, but the deal is subject to a building inspection. If the inspection finds serious problems, the deal falls through. This is being subject to something — it depends on another thing happening first. You might hear “the offer is subject to approval by the board” or “your loan is subject to a credit check.” Or think about a job offer that is subject to satisfactory references — you don’t officially have the job until your references check out. The word creates a condition. ✏️ This is very common in business and legal language — “subject to contract” means nothing is final until the contract is signed.
Vivid ExampleThey shook hands and agreed on a price for the apartment. But the sale was subject to the bank approving the mortgage. For two anxious weeks they waited, until finally the confirmation email arrived.
9 To Force Someone to Experience Something Unpleasant — /səbˈdʒekt/ (Verb) Common ▼
This meaning is about making someone go through something they don’t want to experience — something unpleasant, unfair, or difficult. Imagine a new employee who is subjected to hours of pointless training videos on their first day. They didn’t choose it — they were forced to sit through it. This is subjecting someone to something — making them endure it. You might say “don’t subject me to another one of his boring stories” or “the prisoners were subjected to terrible conditions.” Or think about children being subjected to bullying at school. The word carries a sense of being powerless against the experience. ✏️ “Be subjected to” is the most common pattern — “she was subjected to criticism” means people criticised her and she had no choice but to take it.
Vivid ExampleThe passengers had already been waiting for two hours when the airline subjected them to yet another delay announcement. People groaned and shook their heads in frustration. One woman loudly demanded to speak to a manager.
10 To Bring a Country or People Under Control by Force — Formal (Verb) Less Common ▼
This meaning is about conquering and controlling a country or group of people — forcing them to obey through power. Imagine an empire in ancient history that sent armies across the world to subject neighbouring lands. The conquered people had no choice but to live under foreign rule. This is subjecting a nation — dominating it by military force. You might read “the Romans subjected much of Europe to their rule” or “the colonisers subjected the local population to harsh laws.” Or think about a history textbook describing how one kingdom subjected another through years of warfare. The word suggests total domination. ✏️ This is mostly found in history books and formal writing — in everyday speech, people would say “conquer” or “take over” instead.
Vivid ExampleThe documentary explored how the empire expanded across three continents. It subjected dozens of nations to its rule over two centuries. The effects of that domination can still be felt in those regions today.
Examples from the Street
“Can we change the subject? I really don’t want to talk about this any more.”
Can we switch to a different topic? I’d rather not continue discussing this
“She’s very knowledgeable on the subject — she wrote her thesis on it.”
She knows a great deal about the topic — she completed her academic research paper on it
“Passengers are subject to random security checks before boarding.”
Travellers may be required to undergo unplanned safety inspections before getting on the aircraft
Common Patterns
on the subject of something → regarding a particular topic
change the subject → switch to a different topic to avoid the current one
the subject of (debate/discussion/controversy) → the thing being argued about or examined
a sensitive/difficult/touchy subject → a topic that people find uncomfortable or emotional
drop the subject → stop talking about a topic completely
bring up / raise a subject → introduce a topic into conversation
a school subject → a discipline studied at school
favourite/best/worst subject → the discipline you like most or perform best or worst in
study/take a subject → enrol in or learn a particular academic discipline
a core/compulsory/optional subject → a discipline that is essential, required, or chosen freely
subject to approval/availability/change → dependent on something being confirmed, available, or altered
subject to terms and conditions → governed by specific rules and requirements
subject to delays/disruption → likely to experience hold-ups or interruption
subject to tax/fees/charges → required to pay a particular cost
subject to checks/inspection/review → required to undergo examination or assessment
subject someone to something unpleasant → force someone to endure something negative
subjected to abuse/harassment/criticism → forced to experience mistreatment or attack
subjected to questioning/interrogation → made to answer questions, often intensely
subjected to pressure/stress/demands → forced to endure difficult expectations
be subjected to something → the passive form, very common in news and formal writing
Collocations
4 collocationschange the subject
start talking about something different
subject to change
may be altered or modified
touchy subject
a sensitive topic
subject matter
the topic being discussed
Example Sentences
12 examples
1
Money is always a sensitive subject in their family — nobody ever talks about it openly
Finances are always an uncomfortable topic among their relatives — no one ever discusses the matter honestly.
2
I tried to bring up the subject of his drinking, but he shut the conversation down immediately
I attempted to introduce the topic of his alcohol consumption, but he ended the discussion straight away.
3
She knew he was lying, but she decided to drop the subject rather than start an argument
She was aware he wasn’t telling the truth, but she chose to stop talking about it rather than begin a confrontation.
4
Maths was always my worst subject at school — I could never get my head around algebra
Mathematics was always the discipline I performed most poorly in at school — I could never understand the branch dealing with equations and symbols.
5
The offer is subject to availability and may be withdrawn at any time
The deal depends on whether stock remains and could be removed without notice.
6
All baggage is subject to security screening before being loaded onto the aircraft
Every piece of luggage must undergo a safety inspection before being placed on the plane.
7
Workers at the factory were subjected to appalling conditions — twelve-hour shifts with no breaks
Employees at the plant were forced to endure terrible circumstances — half-day working periods without any rest.
8
The report found that residents had been subjected to months of harassment by their neighbours
The document revealed that the people living there had been forced to endure weeks of intimidation from the people next door.
9
Let’s change the subject — this is getting too depressing
Let’s switch to a different topic — this conversation is becoming far too gloomy.
10
The project is subject to final approval from the board, so nothing is confirmed yet
The initiative depends on receiving the directors’ final agreement, so nothing is definite at this stage.
Learner Examples
★
Grammar is a subject many students dread, but when teachers bring up the subject through real-life examples rather than textbook rules, it suddenly becomes far less intimidating
Language structure is a discipline many learners fear, but when educators introduce the topic through practical, everyday illustrations rather than printed guidelines, it immediately feels much less frightening.
★
Students preparing for exams are often subjected to enormous pressure from parents and teachers alike — creating space for them to breathe is just as important as revision
Learners getting ready for tests are frequently forced to endure intense expectations from both family and educators — giving them room to relax is equally as vital as studying.
Phrasal Verbs & Idioms
3 items
Phrasal Verbssubject to — make someone experience something
Employees are subjected to regular performance reviews every quarter.
Idioms & Expressionschange the subject — start talking about something else
He changed the subject whenever anyone mentioned his ex.
drop the subject — stop discussing a topic
I could tell she was upset, so I dropped the subject.
Synonyms & Antonyms
4 items
Synonymstopic
noun, what you talk about
theme
central idea
expose
verb, make vulnerable to
citizen
noun, person under authority