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9th-grade-vocabulary-words

English Vocabulary · Grade 9 Live Review Preview

9th Grade Vocabulary Words

Ninth grade marks the transition to high-school reading and writing across literature, argument, research, biology, physical and Earth science, algebra, computing, world history, civics, and geography. This level develops precise academic and domain-specific vocabulary while strengthening context, nuance, source evaluation, figurative language, and evidence-based communication.

This independently authored 800-word beta curriculum is arranged in twenty-three pages of up to thirty-five words. Pages containing words 1–500 include five cloze questions drawn only from that enhanced range; words 501–800 remain fully visible and editable as list pages while the expanded practice layer is developed. Each row includes a subject-field label and an editable word-study note about a transparent affix, compound structure, capitalization, or dictionary base form. The cited Grade 9 resources calibrate difficulty and study skills only; all learner-facing definitions, examples, quizzes, and descriptions are original KSSR copy.

Please note: the vocabulary lists for grades 9~11 have been selected to ensure no overlap with the previous grade level. If the words are too specialized or difficult for you, please go back to grade levels 4~8 and review the words on those pages.

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800 words
Words 71–105 of 800
#WordDetailsMeaningSample sentence
71refutationnoun
Study

Field: Grade 9 research, reasoning, and source-literacy term

Word study: Suffix focus: -ation commonly forms a noun naming an action, process, or result.

1. 반박 2. 반증The laboratory result provided a refutation of the rumor about contaminated water.
72rhetorical situationnoun
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Field: Grade 9 research, reasoning, and source-literacy term

Word study: Term structure: rhetorical + situation. Study the complete expression as one field-specific unit.

수사적 상황Understanding the rhetorical situation explains why the mayor used a formal tone.
73scopenoun
Study

Field: Grade 9 research, reasoning, and source-literacy term

Word study: Base-form focus: scope is the dictionary headword; compare its inflected or derived forms in context.

1. 스코프 2. 레인지 3. 폭The paper narrows its scope to public transportation in three coastal cities.
74synthesis matrixnoun
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Field: Grade 9 research, reasoning, and source-literacy term

Word study: Term structure: synthesis + matrix. Study the complete expression as one field-specific unit.

합성 매트릭스A synthesis matrix helped Noor compare how four authors discussed water access.
75thesis statementnoun
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Field: Grade 9 research, reasoning, and source-literacy term

Word study: Term structure: thesis + statement. Study the complete expression as one field-specific unit.

1. 논제문 2. 중심 주장문The thesis statement argues that the novel treats memory as both a gift and a burden.
76citation trailnoun
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Field: Grade 9 research, reasoning, and source-literacy term

Word study: Term structure: citation + trail. Study the complete expression as one field-specific unit.

인용 추적Following the citation trail led the researcher to the original 1987 study.
77integrated quotationnoun
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Field: Grade 9 research, reasoning, and source-literacy term

Word study: Term structure: integrated + quotation. Study the complete expression as one field-specific unit.

1. 문장에 통합한 인용문 2. 통합 인용An integrated quotation supports the paragraph without interrupting its flow.
78signal phrasenoun
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Field: Grade 9 research, reasoning, and source-literacy term

Word study: Term structure: signal + phrase. Study the complete expression as one field-specific unit.

신호 문구The signal phrase “According to marine biologist Ana Ruiz” establishes the source's expertise.
79parenthetical citationnoun
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Field: Grade 9 research, reasoning, and source-literacy term

Word study: Term structure: parenthetical + citation. Study the complete expression as one field-specific unit.

괄호 인용The parenthetical citation directs readers to the matching entry in the works cited list.
80works citednoun
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Field: Grade 9 research, reasoning, and source-literacy term

Word study: Term structure: works + cited. Study the complete expression as one field-specific unit.

1. 인용 문헌 목록 2. 참고 문헌 목록The works cited gives publication details for every article quoted in the essay.
81source notenoun
Study

Field: Grade 9 research, reasoning, and source-literacy term

Word study: Term structure: source + note. Study the complete expression as one field-specific unit.

소스 노트The map's source note credits the national geological survey.
82revision plannoun
Study

Field: Grade 9 research, reasoning, and source-literacy term

Word study: Term structure: revision + plan. Study the complete expression as one field-specific unit.

개정 계획Her revision plan begins with strengthening the counterargument and reorganizing two paragraphs.
83peer feedbacknoun
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Field: Grade 9 research, reasoning, and source-literacy term

Word study: Term structure: peer + feedback. Study the complete expression as one field-specific unit.

동료 피드백Peer feedback showed that the explanation needed a clearer example.
84sentence fluencynoun
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Field: Grade 9 research, reasoning, and source-literacy term

Word study: Term structure: sentence + fluency. Study the complete expression as one field-specific unit.

문장 유창성Varying sentence length improved the paragraph's sentence fluency.
85parallel structurenoun
Study

Field: Grade 9 research, reasoning, and source-literacy term

Word study: Term structure: parallel + structure. Study the complete expression as one field-specific unit.

병렬 구조“To learn, to question, and to grow” uses parallel structure.
86logical progressionnoun
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Field: Grade 9 research, reasoning, and source-literacy term

Word study: Term structure: logical + progression. Study the complete expression as one field-specific unit.

논리적 진행The report has a logical progression from the problem to its causes and possible solutions.
87transitional phrasenoun
Study

Field: Grade 9 research, reasoning, and source-literacy term

Word study: Term structure: transitional + phrase. Study the complete expression as one field-specific unit.

전환 문구The transitional phrase “on the other hand” introduces a contrast.
88topic developmentnoun
Study

Field: Grade 9 research, reasoning, and source-literacy term

Word study: Term structure: topic + development. Study the complete expression as one field-specific unit.

주제 개발Facts alone do not create topic development unless the writer explains their significance.
89formal tonenoun
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Field: Grade 9 research, reasoning, and source-literacy term

Word study: Term structure: formal + tone. Study the complete expression as one field-specific unit.

형식적인 어조The application letter maintains a formal tone by avoiding slang.
90specificitynoun
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Field: Grade 9 research, reasoning, and source-literacy term

Word study: Suffix focus: -ity commonly forms a noun naming a quality, state, or condition.

1. 구체성 2. 명확성Replacing “things got better” with measured results adds specificity.
91source synthesisnoun
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Field: Grade 9 research, reasoning, and source-literacy term

Word study: Term structure: source + synthesis. Study the complete expression as one field-specific unit.

소스 합성Her source synthesis compares the studies instead of summarizing each one separately.
92citation ethicsnoun
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Field: Grade 9 research, reasoning, and source-literacy term

Word study: Term structure: citation + ethics. Study the complete expression as one field-specific unit.

인용윤리Citation ethics requires a writer to identify both direct quotations and paraphrased ideas.
93research ethicsnoun
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Field: Grade 9 research, reasoning, and source-literacy term

Word study: Term structure: research + ethics. Study the complete expression as one field-specific unit.

연구윤리Research ethics requires informed consent before collecting private interview data.
94data provenancenoun
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Field: Grade 9 research, reasoning, and source-literacy term

Word study: Term structure: data + provenance. Study the complete expression as one field-specific unit.

데이터 출처The repository preserves data provenance by naming the sensor, date, and processing steps.
95sample biasnoun
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Field: Grade 9 research, reasoning, and source-literacy term

Word study: Term structure: sample + bias. Study the complete expression as one field-specific unit.

표본편향Surveying only morning commuters introduces sample bias into a study of all transit riders.
96selection biasnoun
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Field: Grade 9 research, reasoning, and source-literacy term

Word study: Term structure: selection + bias. Study the complete expression as one field-specific unit.

선택 편향Allowing volunteers to choose their own treatment group can create selection bias.
97confirmation biasnoun
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Field: Grade 9 research, reasoning, and source-literacy term

Word study: Term structure: confirmation + bias. Study the complete expression as one field-specific unit.

확증편향(確證偏向)Confirmation bias may lead a reader to ignore evidence that challenges an opinion.
98publication biasnoun
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Field: Grade 9 research, reasoning, and source-literacy term

Word study: Term structure: publication + bias. Study the complete expression as one field-specific unit.

출판 편향Publication bias can make a treatment appear more effective than the complete evidence shows.
99conflict of interestnoun
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Field: Grade 9 research, reasoning, and source-literacy term

Word study: Term structure: conflict + of + interest. Study the complete expression as one field-specific unit.

이해상충The reviewer disclosed a conflict of interest because she owned stock in the company.
100replication studynoun
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Field: Grade 9 research, reasoning, and source-literacy term

Word study: Term structure: replication + study. Study the complete expression as one field-specific unit.

1. 재현 연구 2. 반복 검증 연구A replication study found the same effect in a different city and age group.
101narratologynoun
Study

Field: Grade 9 literature, rhetoric, and language term

Word study: Root and suffix focus: -logy means the study of a subject.

서사학Narratology examines how changes in time and point of view shape a reader's experience.
102focalizationnoun
Study

Field: Grade 9 literature, rhetoric, and language term

Word study: Suffix focus: -ization forms a noun for a process of making or becoming.

초점화The chapter uses the child's focalization, so readers notice details that matter to her.
103narrative distancenoun
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Field: Grade 9 literature, rhetoric, and language term

Word study: Term structure: narrative + distance. Study the complete expression as one field-specific unit.

서술적 거리Short, urgent thoughts reduce the narrative distance during the escape scene.
104narrative reliabilitynoun
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Field: Grade 9 literature, rhetoric, and language term

Word study: Term structure: narrative + reliability. Study the complete expression as one field-specific unit.

서술적 신뢰성Conflicting dates make the narrator's narrative reliability increasingly doubtful.
105nonlinear narrativenoun
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Field: Grade 9 literature, rhetoric, and language term

Word study: Term structure: nonlinear + narrative. Study the complete expression as one field-specific unit.

비선형 서술The nonlinear narrative moves between the trial and memories of the earlier voyage.

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Sources and curriculum references

These references guide selection and calibration. Definitions, sample sentences, readings, questions, and teaching notes are independently written and reviewed.