HiSET Reading study materials
HiSET Reading study resources

HiSET Reading key terms

HiSET Reading · Get comfortable with the vocabulary.

main idea

The central point a passage communicates about its topic. It is often stated in a topic sentence or opening paragraph, but readers may need to infer it from details.

Related: supporting detail, summary, theme
supporting detail

A fact, example, reason, or description that explains or backs up a main idea. Details answer questions like who, what, when, where, why, or how.

Related: main idea, evidence
inference

A reasonable conclusion drawn from clues in a text plus the reader's own knowledge. It is not stated directly, so readers must connect evidence to reach it.

Related: explicit information, evidence, main idea
explicit information

Information stated directly and clearly in a text, leaving little need for interpretation. Readers can point to the exact words that give the answer.

Related: inference, supporting detail
author's purpose

The reason an author writes a text, such as to inform, persuade, entertain, or explain. Purpose shapes the content, organization, and tone of the passage.

Related: tone, point of view
tone

The author's attitude toward the subject or audience, revealed through word choice and details. Tone might be serious, humorous, critical, or hopeful.

Related: mood, author's purpose
mood

The feeling a text creates in the reader, often through setting, imagery, and word choice. Mood is related to tone but focuses on the reader's emotional response.

Related: tone, figurative language
point of view

The perspective from which a text is told, such as first person, third-person limited, or third-person omniscient. It affects what information the reader receives.

Related: tone, author's purpose
theme

A message or insight about life or human nature that a literary work conveys. Themes are usually implied rather than stated directly and are supported by characters, events, and details.

Related: main idea, inference
summary

A brief restatement of a text's main points in the reader's own words. A good summary keeps essential ideas and leaves out minor details or personal opinions.

Related: main idea, supporting detail
context clue

A word, phrase, or sentence near an unfamiliar word that helps readers figure out its meaning. Types include definitions, examples, contrasts, and restatements.

Related: inference, explicit information
figurative language

Language that goes beyond literal meaning to create vivid images or comparisons. It includes metaphors, similes, personification, and idioms.

Related: metaphor, simile, symbol
metaphor

A direct comparison that describes one thing as another without using 'like' or 'as.' Metaphors help readers see familiar ideas in new ways.

Related: simile, figurative language
simile

A comparison between two unlike things using 'like' or 'as.' Similes make descriptions more vivid and can reveal tone or mood.

Related: metaphor, figurative language
symbol

A person, place, object, or event that represents a larger idea or meaning beyond itself. Symbols are common in literature and often support a theme.

Related: theme, figurative language
compare and contrast

A reading skill that examines similarities and differences between two or more subjects. Signal words like 'both,' 'unlike,' and 'however' often point to comparisons or contrasts.

Related: cause and effect, main idea
cause and effect

A relationship in which one event or action makes another happen. Readers look for signal words such as 'because,' 'therefore,' 'result,' and 'leads to.'

Related: compare and contrast, chronological order
chronological order

The arrangement of events in the order they happened in time. Dates, times, and words like 'first,' 'next,' and 'finally' help readers follow the sequence.

Related: cause and effect, transition
fact and opinion

A fact is a statement that can be proved true or false; an opinion expresses a belief, feeling, or judgment. Distinguishing them helps readers judge reliability.

Related: bias, credibility
bias

A preference or leaning that affects how a writer presents information or treats a subject. Bias can appear through word choice, selection of details, and omission.

Related: fact and opinion, credibility
credibility

The degree to which a source or author can be trusted. Credibility depends on accuracy, expertise, evidence, and freedom from obvious bias.

Related: bias, evidence
claim

A statement that a writer or speaker asks readers to accept as true. In an argument, the claim is the main point that evidence is meant to support.

Related: evidence, counterargument
evidence

Information used to support a claim, such as facts, examples, statistics, quotations, or expert opinions. Strong evidence is relevant, accurate, and sufficient.

Related: claim, credibility
counterargument

An opposing view or objection to a claim. Recognizing and answering counterarguments can make an argument stronger and more persuasive.

Related: claim, evidence
thesis statement

A sentence that states the main argument or central idea of an essay. It usually appears near the beginning and guides the organization of the whole piece.

Related: topic sentence, claim
topic sentence

A sentence that introduces the main idea of a paragraph. It helps readers understand what the paragraph will explain and how it connects to the larger piece.

Related: thesis statement, main idea
transition

A word, phrase, or sentence that connects ideas and shows how they relate. Transitions can signal addition, contrast, cause, sequence, or conclusion.

Related: chronological order, topic sentence
subject-verb agreement

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

Related: pronoun reference, run-on sentence
run-on sentence

Two or more complete sentences joined without correct punctuation or a connecting word. It can confuse readers by blurring where one idea ends and another begins.

Related: subject-verb agreement, parallel structure
parallel structure

Using the same grammatical form for items in a list or for ideas of equal importance. Parallelism makes writing clearer, smoother, and easier to follow.

Related: transition, run-on sentence
pronoun reference

The relationship between a pronoun and the noun it replaces. Clear pronoun reference prevents confusion about who or what is being discussed.

Related: subject-verb agreement, topic sentence
hypothesis

A testable prediction or proposed explanation that can be checked through observation or experiment. A hypothesis guides scientific investigation and may be revised as evidence appears.

Related: data, observation
data

Information collected through observation, measurement, or experiment. Data can be numbers, descriptions, or records and are analyzed to support or challenge explanations.

Related: hypothesis, observation, mean
observation

Information gathered directly through the senses or with instruments, rather than through guessing. Observations are the raw material of scientific inquiry.

Related: data, hypothesis
primary source

A document, object, or record created by someone who took part in or witnessed an event. Examples include letters, diaries, photographs, and official records.

Related: secondary source, historical context
secondary source

A work that interprets or analyzes events using primary sources and other evidence. Examples include textbooks, biographies, and history articles.

Related: primary source, credibility
historical context

The social, political, economic, and cultural conditions surrounding an event or text. Understanding context helps readers interpret why people acted or wrote as they did.

Related: primary source, bias
percent

A rate or ratio out of 100. Percent means 'per hundred,' so 45% equals 45 out of 100, or 0.45.

Related: ratio, mean
ratio

A comparison of two quantities by division, often written as a fraction or with a colon. Ratios describe how much of one thing exists relative to another.

Related: percent, mean
mean

The arithmetic average of a set of numbers, found by adding all values and dividing by the number of values. The mean is one way to describe a data set's center.

Related: data, percent