JC English study materials
JC English study resources

JC English key terms

JC English · Get comfortable with the vocabulary.

main idea

The most important point a passage or talk is making, which the other details explain or support. A reader or listener should be able to state it in one sentence.

Related: supporting detail, topic sentence, inference
supporting detail

A fact, example, or reason that backs up the main idea of a text. Details answer questions like who, what, when, where, why, and how.

Related: main idea, topic sentence
topic sentence

A sentence, usually first in a paragraph, that states the paragraph's central point. The remaining sentences develop or illustrate that point.

Related: main idea, paragraph unity
inference

A conclusion drawn from clues in a text rather than stated directly. Skilled readers combine evidence with background knowledge to infer meaning, attitude, or what will happen next.

Related: main idea, context clue, tone
context clue

Information in the surrounding words or sentences that helps a reader work out the meaning of an unfamiliar word. Clues include definitions, examples, contrasts, and restatements.

Related: inference, synonym, antonym
author's purpose

The reason a writer produces a text, such as to inform, persuade, entertain, or instruct. Identifying purpose helps a reader judge how the information should be interpreted.

Related: tone, main idea
tone

The attitude a writer or speaker conveys through word choice and phrasing, for example humorous, critical, or sympathetic. Tone differs from mood, which is the feeling created in the reader.

Related: author's purpose, inference
scanning

Reading quickly through a text to locate a specific piece of information, such as a date or name, without reading every word. It is useful for answering detail questions efficiently.

Related: skimming, supporting detail
skimming

Reading rapidly to get the general sense of a text, often by focusing on headings, first sentences, and key words. It is used before detailed reading or to answer main-idea questions.

Related: scanning, main idea
coherence

The quality that makes a text flow logically, with ideas connected in a clear order. Coherence depends on sensible organization as well as on linking words.

Related: cohesion, transition word
cohesion

The way sentences in a text are tied together through pronouns, repeated words, and linking devices. Strong cohesion makes clear which ideas refer back to which.

Related: coherence, transition word, pronoun reference
transition word

A word or phrase such as however, therefore, or in addition that signals the relationship between ideas. Transition words guide readers through contrast, cause, sequence, or addition.

Related: coherence, cohesion
noun

A word that names a person, place, thing, or idea, such as teacher, city, book, or freedom. Nouns can be common or proper, countable or uncountable, and singular or plural.

Related: verb, adjective, subject-verb agreement
verb

A word that expresses an action or a state of being, such as run, think, or seem. Verbs change form to show tense, aspect, and agreement with the subject.

Related: noun, tense, subject-verb agreement
adjective

A word that describes or gives more information about a noun, such as tall, quiet, or expensive. Adjectives can appear before a noun or after a linking verb.

Related: noun, adverb
adverb

A word that modifies a verb, an adjective, or another adverb, often telling how, when, or how often, as in quickly, yesterday, or very. Many adverbs end in -ly.

Related: adjective, verb
tense

The form of a verb that shows when an action happens, such as present, past, or future. Tense must be consistent and appropriate to the time frame of the sentence.

Related: verb, present perfect, subject-verb agreement
present perfect

A verb form made with have or has plus a past participle, used for past actions linked to the present or for experience at an unstated time, as in I have finished.

Related: tense, past participle
past participle

The verb form used after have or be, often ending in -ed for regular verbs, as in walked, or irregular as in written. It forms perfect tenses and the passive voice.

Related: present perfect, passive voice, tense
passive voice

A sentence structure in which the subject receives the action rather than performing it, formed with be plus a past participle, as in The window was broken.

Related: past participle, active voice
active voice

A sentence structure in which the subject performs the action of the verb, as in The dog chased the ball. Active voice is usually clearer and more direct than passive voice.

Related: passive voice, verb
subject-verb agreement

The rule that a verb must match its subject in number and person, so a singular subject takes a singular verb and a plural subject takes a plural verb.

Related: noun, verb, tense
pronoun reference

The relationship between a pronoun such as he, it, or they and the noun it stands for. Clear reference means the reader can tell exactly which noun is meant.

Related: cohesion, relative clause
relative clause

A clause introduced by who, which, that, or whose that describes a noun, as in the book that I borrowed. It can be defining or non-defining, which affects punctuation.

Related: pronoun reference, comma splice
conditional sentence

A sentence expressing a condition and its result, usually with if, such as If it rains, we will stay home. Different forms express real, unreal, or past unreal situations.

Related: modal verb, tense
modal verb

A helping verb such as can, must, should, or might that expresses ability, obligation, permission, or possibility. Modal verbs are followed by the base form of the main verb.

Related: conditional sentence, verb
comma splice

An error in which two independent clauses are joined only by a comma, as in I was tired, I went to bed. It should be fixed with a conjunction, a semicolon, or a full stop.

Related: relative clause, punctuation
punctuation

The marks used in writing, including full stops, commas, semicolons, colons, and question marks, to separate ideas and clarify meaning. Correct punctuation prevents misreading.

Related: comma splice, paragraph unity
synonym

A word with a meaning close to that of another word, such as begin and start. Synonyms are rarely identical in use, so register and collocation still matter.

Related: antonym, context clue, collocation
antonym

A word with an opposite meaning to another, such as hot and cold. Antonyms help readers understand contrast and can clarify a word's meaning through context.

Related: synonym, context clue
collocation

A combination of words that native speakers naturally use together, such as make a decision or heavy rain. Learning collocations makes writing and speech sound accurate and fluent.

Related: synonym, idiom, register
idiom

A fixed expression whose meaning cannot be worked out from its individual words, such as break the ice. Idioms are common in speech and informal writing.

Related: collocation, phrasal verb
phrasal verb

A verb combined with a particle or preposition that creates a new meaning, such as give up or look after. The meaning often differs from the base verb.

Related: idiom, collocation
register

The level of formality in language, ranging from casual speech to formal writing. Choosing the right register means matching vocabulary and grammar to the audience and situation.

Related: collocation, formal writing
prefix

A word part added to the beginning of a word to change its meaning, such as un- in unhappy or re- in rewrite. Knowing common prefixes helps build vocabulary.

Related: suffix, synonym
suffix

A word part added to the end of a word that often changes its grammatical class, such as -ness in kindness or -ful in hopeful. Suffixes help identify whether a word is a noun, verb, or adjective.

Related: prefix, adjective
thesis statement

A sentence, usually near the start of an essay, that states the main argument or position. It guides the structure of the whole piece and should be specific.

Related: topic sentence, paragraph unity, outline
paragraph unity

The quality of a paragraph in which every sentence relates to one central point. Unity is achieved by removing irrelevant ideas and keeping the topic sentence in focus.

Related: topic sentence, thesis statement, coherence
outline

A plan that lists the main points and supporting ideas of a piece of writing in order. It helps a writer organize ideas before drafting and check the logic of the structure.

Related: thesis statement, paragraph unity
formal writing

Writing that avoids slang, contractions, and casual expressions, using complete sentences and precise vocabulary. It suits essays, reports, and official communication.

Related: register, thesis statement
proofreading

The final stage of checking a piece of writing for spelling, grammar, and punctuation errors. It is done after revising content and organization.

Related: punctuation, comma splice
gist

The general meaning or main point of something heard or read, without every detail. Listeners often grasp the gist before understanding specific words.

Related: listening for detail, main idea
listening for detail

Listening with the aim of catching specific information such as numbers, names, or times. It usually requires focused attention and may involve note-taking.

Related: gist, note-taking
note-taking

Writing brief records of key points while listening or reading, using abbreviations and symbols. Good notes capture main ideas and important details without distracting from comprehension.

Related: listening for detail, gist
distractor

An answer option or piece of information designed to seem correct but is not. Recognizing distractors helps candidates avoid choosing answers based on a single familiar word.

Related: listening for detail, gist
intonation

The rise and fall of the voice in speech, which can signal a question, emphasis, or emotion. Intonation often carries meaning beyond the words themselves.

Related: stress, pronunciation
stress

The extra force placed on a particular syllable or word in speech. Correct word stress helps listeners recognize words, and sentence stress highlights important information.

Related: intonation, pronunciation
pronunciation

The way in which words are spoken, including individual sounds, stress, and rhythm. Clear pronunciation supports mutual understanding in conversation.

Related: intonation, stress, fluency
fluency

The ability to speak smoothly and at a reasonable pace without excessive hesitation. Fluency involves natural rhythm and the capacity to keep a conversation going.

Related: pronunciation, turn-taking
turn-taking

The practice of letting speakers alternate in a conversation, with each person knowing when to speak and when to listen. It is a key part of managing spoken interaction.

Related: fluency, discourse marker
discourse marker

A short word or phrase such as well, actually, or by the way that organizes speech and signals a speaker's intention. Markers make conversation sound natural and coherent.

Related: turn-taking, fluency, cohesion