subject

/'sʌbdʤikt/
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subject

The student studies her favorite subject in the library.

Definition
  1. Noun:

    • A topic or theme: The main idea or matter being discussed, considered, or studied.
    • A branch of knowledge: A specific area of study or learning.
    • A person under the rule of a monarch or government: An individual who owes allegiance to a sovereign or state.
    • The person or thing being studied or examined: An individual, group, or entity that is the focus of observation, research, or analysis.
    • (Grammar) The main noun or pronoun: The part of a sentence or clause that typically performs the action or is described by the verb.
    • (Philosophy) The conscious self: The thinking, feeling individual, as distinct from the external world.
  2. Adjective:

    • Under the authority or control of another: Being in a position of subordination or dependence.
    • Likely or prone to be affected by something: Having a tendency or susceptibility to a particular condition or influence.
    • Conditional upon: Dependent on something else happening or being agreed upon.
  3. Verb:

    • To cause to undergo or experience: To bring someone or something under the influence or control of a particular action, condition, or treatment.
    • To bring under domination or control: To subdue or conquer.
Usage Examples
  • Noun:

    • The subject of the lecture was climate change.
    • History is my favorite subject in school.
    • The king addressed his loyal subjects.
    • The scientist observed the test subject carefully.
    • In the sentence "The cat sleeps," "the cat" is the subject.
  • Adjective:

    • The territory was subject to the emperor's rule.
    • This coastal region is subject to hurricanes.
    • The plan is subject to approval by the board.
  • Verb:

    • The researchers will subject the material to extreme temperatures.
    • The invading army sought to subject the population.
Advanced Usage
  • "Subject to" (prepositional phrase): Indicating conditionality or susceptibility.

    • The offer is subject to availability.
    • All decisions are subject to review.
  • "On the subject of": Concerning or regarding a particular topic.

    • On the subject of funding, we need more information.
  • "Change the subject": To deliberately start talking about something different.

    • Whenever politics came up, he would change the subject.
Variants and Related Words
  • Subjective (adj): Based on or influenced by personal feelings, tastes, or opinions.
    • Film criticism is often highly subjective.
  • Subjectivity (n): The quality of being based on individual perspective.
  • Subject matter (n): The topic or material under consideration.
    • The subject matter of the book is quite complex.
Synonyms
  • Noun (Topic): Topic, theme, issue, matter.
  • Noun (Branch of study): Discipline, field, area.
  • Adjective (Prone to): Susceptible, liable, prone, vulnerable.
  • Verb (Cause to undergo): Expose, submit, put through.
Related Phrasal Verbs / Constructions
  • Subject someone/something to something: To force someone or something to experience something unpleasant.
    • The prisoners were subjected to harsh conditions.
Related Idioms
  • A sore subject: A topic that causes upset or anger when mentioned.
    • His failed business venture is a sore subject.
  • Off the subject: Not relevant to the current topic of discussion.
    • Your comment is interesting but off the subject.
subject

The student studies her favorite subject in the library.

Adjective
  1. likely to be affected by something
    • the bond is subject to taxation
    • he is subject to fits of depression
  2. being under the power or sovereignty of another or others
    • subject peoples
    • a dependent prince
  3. possibly accepting or permitting
    • a passage capable of misinterpretation
    • open to interpretation
    • an issue open to question
    • the time is fixed by the director and players and therefore subject to much variation
Noun
  1. (logic) the first term of a proposition
  2. a person who owes allegiance to that nation
    • a monarch has a duty to his subjects
  3. a person who is subjected to experimental or other observational procedures; someone who is an object of investigation
    • the subjects for this investigation were selected randomly
    • the cases that we studied were drawn from two different communities
  4. (grammar) one of the two main constituents of a sentence; the grammatical constituent about which something is predicated
  5. some situation or event that is thought about
    • he kept drifting off the topic
    • he had been thinking about the subject for several years
    • it is a matter for the police
  6. a branch of knowledge
    • in what discipline is his doctorate?
    • teachers should be well trained in their subject
    • anthropology is the study of human beings
  7. something (a person or object or scene) selected by an artist or photographer for graphic representation
    • a moving picture of a train is more dramatic than a still picture of the same subject
  8. the subject matter of a conversation or discussion
    • he didn't want to discuss that subject
    • it was a very sensitive topic
    • his letters were always on the theme of love
Verb
  1. refer for judgment or consideration
    • The lawyers submitted the material to the court
  2. make subservient; force to submit or subdue
  3. make accountable for
    • He did not want to subject himself to the judgments of his superiors
  4. cause to experience or suffer or make liable or vulnerable to
    • He subjected me to his awful poetry
    • The sergeant subjected the new recruits to many drills
    • People in Chernobyl were subjected to radiation