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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 631–665 of 800
#WordDetailsMeaningSample sentence
631equivalencenoun
Study

Field: Grade 9 precise high-utility word

Word study: Suffix focus: -ence commonly forms a noun naming an action, quality, or state.

等价The translator questioned the equivalence of the two legal terms.
632exclusionnoun
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Field: Grade 9 precise high-utility word

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

排除The exclusion of rural households distorted the survey.
633expansionnoun
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Field: Grade 9 precise high-utility word

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

膨胀Railway expansion connected inland farms with coastal ports.
634exploitationnoun
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Field: Grade 9 precise high-utility word

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

使用Labor laws were introduced to reduce the exploitation of children.
635responsivenessnoun
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Field: Grade 9 precise high-utility word

Word study: Suffix focus: -ness forms a noun naming a quality or state.

反应能力The agency's responsiveness improved after it opened a public hotline.
636inclusivitynoun
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Field: Grade 9 precise high-utility word

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

包容性Providing captions improves the meeting's inclusivity.
637inevitabilitynoun
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Field: Grade 9 precise high-utility word

Word study: Suffix focus: -ability forms a noun for the capacity to have a quality or perform an action.

必然性The author challenges the supposed inevitability of the war.
638modernizationnoun
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Field: Grade 9 precise high-utility word

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

1. 現代化 2. 近代化 3. 现代化Railway modernization shortened travel times and improved safety.
639inspectionnoun
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Field: Grade 9 precise high-utility word

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

检查A bridge inspection found corrosion beneath the road surface.
640interactionnoun
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Field: Grade 9 precise high-utility word

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

1. 相互作用 2. 互動 3. 交流The medication can cause a harmful interaction with grapefruit.
641isolationnoun
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Field: Grade 9 precise high-utility word

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

1. 隔離 2. 隔斷Geographic isolation allowed the island species to develop independently.
642justificationnoun
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Field: Grade 9 precise high-utility word

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

1. 正當化 2. 道理The report gives no justification for excluding the smaller schools.
643maintenancenoun
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Field: Grade 9 precise high-utility word

Word study: Suffix focus: -ance commonly forms a noun naming an action, quality, or state.

1. 保養 2. 維持 3. 保守Routine maintenance prevented the machine from overheating.
644manipulationnoun
Study

Field: Grade 9 precise high-utility word

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

操縱Selective cropping can become manipulation when it changes a photograph's apparent meaning.
645modificationnoun
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Field: Grade 9 precise high-utility word

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

变动The wheelchair ramp required a modification to the entrance.
646negotiationnoun
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Field: Grade 9 precise high-utility word

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

1. 談判 2. 交涉Negotiation ended the strike with a revised contract.
647spatial orientationnoun
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Field: Grade 9 precise high-utility word

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

空间定向The map improved hikers' spatial orientation in the fog.
648participationnoun
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Field: Grade 9 precise high-utility word

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

1. 參加 2. 參與 3. 参加Online access increased participation in the public hearing.
649perceptionnoun
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Field: Grade 9 precise high-utility word

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

知覺Lighting can change the perception of a room's size.
650continuancenoun
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Field: Grade 9 precise high-utility word

Word study: Suffix focus: -ance commonly forms a noun naming an action, quality, or state.

继续Funding is necessary for the continuance of the research program.
651preventionnoun
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Field: Grade 9 precise high-utility word

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

預防Vaccination is an important form of disease prevention.
652prioritynoun
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Field: Grade 9 precise high-utility word

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

1. 優先權 2. 更重要Restoring clean water became the city's first priority.
653prohibitionnoun
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Field: Grade 9 precise high-utility word

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

1. 禁令 2. 禁止The park has a prohibition against feeding wild animals.
654promotionnoun
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Field: Grade 9 precise high-utility word

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

1. 提升 2. 升官 3. 升職The campaign focuses on the promotion of bicycle safety.
655proportionalitynoun
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Field: Grade 9 precise high-utility word

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

相称性The court considered whether the penalty had proportionality to the offense.
656proximitynoun
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Field: Grade 9 precise high-utility word

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

接近The garden's proximity to the river makes flooding possible.
657pursuitnoun
Study

Field: Grade 9 precise high-utility word

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

追求Her pursuit of accuracy led her back to the original records.
658response ratenoun
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Field: Grade 9 precise high-utility word

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

回复率Reminder messages increased the survey's response rate.
659recoverynoun
Study

Field: Grade 9 precise high-utility word

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

1. 復原 2. 復甦 3. 回復Wetland recovery began after grazing ended.
660governancenoun
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Field: Grade 9 precise high-utility word

Word study: Suffix focus: -ance commonly forms a noun naming an action, quality, or state.

1. 統治制度 2. 治理體系 3. 方向Transparent governance includes public access to budgets and rules.
661reinforcementnoun
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Field: Grade 9 precise high-utility word

Word study: Suffix focus: -ment commonly forms a noun for an action, process, state, or result.

救命Steel reinforcement helps concrete resist tension.
662restrictionnoun
Study

Field: Grade 9 precise high-utility word

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

限制A seasonal restriction protects nesting birds from disturbance.
663retentionnoun
Study

Field: Grade 9 precise high-utility word

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

1. 留用 2. 記性 记性Tree roots improve soil retention on the slope.
664revelationnoun
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Field: Grade 9 precise high-utility word

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

1. 洩露 2. 揭發 3. 披露The diary's revelation changed how historians understood the expedition.
665significancenoun
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Field: Grade 9 precise high-utility word

Word study: Suffix focus: -ance commonly forms a noun naming an action, quality, or state.

1. 意味 2. 意義 3. 意思The essay explains the significance of the broken watch in the final scene.

Vocabulary reading and practice

Evaluating a Public Policy

Reading practice for pages 19–21. Five relevant words are highlighted.

English reading

A city proposes an expansion of late-night bus service. Advocates argue that equal fares create equivalence across routes, but residents warn that geographic exclusion will persist if some neighborhoods remain unserved. Officials must prevent the exploitation of drivers through unsafe schedules and demonstrate responsiveness by revising the plan after public testimony.

Simplified Chinese translation

A reviewed translation is not available for this passage yet.

Reading comprehension

1. What service expansion is proposed?

The city proposes expanded late-night bus service.

2. What exclusion concerns residents?

They worry that some neighborhoods will remain unserved.

3. How can officials show responsiveness?

They can revise the plan after public testimony.

Sources and curriculum references

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