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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Words 631–665 of 800
#	Word	Details	Meaning	Sample sentence
631	equivalence	noun Study Field: Grade 9 precise high-utility word Word study: Suffix focus: -ence commonly forms a noun naming an action, quality, or state.	the condition of having equal meaning, value, function, or effect	The translator questioned the equivalence of the two legal terms.
632	exclusion	noun Study Field: Grade 9 precise high-utility word Word study: Suffix focus: -sion commonly forms a noun naming an action, process, or result.	the act or condition of keeping someone or something out	The exclusion of rural households distorted the survey.
633	expansion	noun Study Field: Grade 9 precise high-utility word Word study: Suffix focus: -sion commonly forms a noun naming an action, process, or result.	an increase in size, range, amount, or influence	Railway expansion connected inland farms with coastal ports.
634	exploitation	noun Study Field: Grade 9 precise high-utility word Word study: Suffix focus: -ation commonly forms a noun naming an action, process, or result.	unfair or excessive use of people or resources for advantage	Labor laws were introduced to reduce the exploitation of children.
635	responsiveness	noun Study Field: Grade 9 precise high-utility word Word study: Suffix focus: -ness forms a noun naming a quality or state.	the ability or willingness to react appropriately and promptly	The agency's responsiveness improved after it opened a public hotline.
636	inclusivity	noun Study Field: Grade 9 precise high-utility word Word study: Suffix focus: -ity commonly forms a noun naming a quality, state, or condition.	the practice or quality of welcoming participation across differences	Providing captions improves the meeting's inclusivity.
637	inevitability	noun Study 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.	the condition of being certain to happen or impossible to avoid	The author challenges the supposed inevitability of the war.
638	modernization	noun Study Field: Grade 9 precise high-utility word Word study: Suffix focus: -ization forms a noun for a process of making or becoming.	the process of updating systems, technology, or institutions	Railway modernization shortened travel times and improved safety.
639	inspection	noun Study Field: Grade 9 precise high-utility word Word study: Suffix focus: -tion commonly forms a noun naming an action, process, or result.	careful official or technical examination	A bridge inspection found corrosion beneath the road surface.
640	interaction	noun Study Field: Grade 9 precise high-utility word Word study: Suffix focus: -tion commonly forms a noun naming an action, process, or result.	an action or influence occurring between two or more people, forces, or systems	The medication can cause a harmful interaction with grapefruit.
641	isolation	noun Study Field: Grade 9 precise high-utility word Word study: Suffix focus: -ation commonly forms a noun naming an action, process, or result.	the condition of being separated from others or from outside contact	Geographic isolation allowed the island species to develop independently.
642	justification	noun Study Field: Grade 9 precise high-utility word Word study: Suffix focus: -ation commonly forms a noun naming an action, process, or result.	a reason or body of evidence showing why a decision or belief is reasonable	The report gives no justification for excluding the smaller schools.
643	maintenance	noun Study Field: Grade 9 precise high-utility word Word study: Suffix focus: -ance commonly forms a noun naming an action, quality, or state.	work that keeps something safe and functioning	Routine maintenance prevented the machine from overheating.
644	manipulation	noun Study Field: Grade 9 precise high-utility word Word study: Suffix focus: -ation commonly forms a noun naming an action, process, or result.	skillful control or unfair influence over something or someone	Selective cropping can become manipulation when it changes a photograph's apparent meaning.
645	modification	noun Study Field: Grade 9 precise high-utility word Word study: Suffix focus: -ation commonly forms a noun naming an action, process, or result.	a change made to improve, adapt, or alter something	The wheelchair ramp required a modification to the entrance.
646	negotiation	noun Study Field: Grade 9 precise high-utility word Word study: Suffix focus: -ation commonly forms a noun naming an action, process, or result.	discussion intended to reach agreement among parties with different interests	Negotiation ended the strike with a revised contract.
647	spatial orientation	noun Study Field: Grade 9 precise high-utility word Word study: Term structure: spatial + orientation. Study the complete expression as one field-specific unit.	awareness of position and direction within a physical space	The map improved hikers' spatial orientation in the fog.
648	participation	noun Study Field: Grade 9 precise high-utility word Word study: Suffix focus: -ation commonly forms a noun naming an action, process, or result.	the act of taking part in an activity, process, or decision	Online access increased participation in the public hearing.
649	perception	noun Study Field: Grade 9 precise high-utility word Word study: Suffix focus: -tion commonly forms a noun naming an action, process, or result.	the way something is noticed, understood, or interpreted	Lighting can change the perception of a room's size.
650	continuance	noun Study Field: Grade 9 precise high-utility word Word study: Suffix focus: -ance commonly forms a noun naming an action, quality, or state.	the state or act of remaining in operation or existence	Funding is necessary for the continuance of the research program.
651	prevention	noun Study Field: Grade 9 precise high-utility word Word study: Suffix focus: -tion commonly forms a noun naming an action, process, or result.	action taken to stop a harmful event or condition before it occurs	Vaccination is an important form of disease prevention.
652	priority	noun Study Field: Grade 9 precise high-utility word Word study: Suffix focus: -ity commonly forms a noun naming a quality, state, or condition.	something treated as more important or urgent than other matters	Restoring clean water became the city's first priority.
653	prohibition	noun Study Field: Grade 9 precise high-utility word Word study: Suffix focus: -ition commonly forms a noun naming an action, process, or result.	an official rule or law that forbids something	The park has a prohibition against feeding wild animals.
654	promotion	noun Study Field: Grade 9 precise high-utility word Word study: Suffix focus: -tion commonly forms a noun naming an action, process, or result.	support intended to increase awareness, use, status, or sales	The campaign focuses on the promotion of bicycle safety.
655	proportionality	noun Study Field: Grade 9 precise high-utility word Word study: Suffix focus: -ity commonly forms a noun naming a quality, state, or condition.	the quality of having a consistent ratio or an appropriate relation in size or degree	The court considered whether the penalty had proportionality to the offense.
656	proximity	noun Study Field: Grade 9 precise high-utility word Word study: Suffix focus: -ity commonly forms a noun naming a quality, state, or condition.	nearness in space, time, or relationship	The garden's proximity to the river makes flooding possible.
657	pursuit	noun 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.	the act of seeking, following, or working toward something	Her pursuit of accuracy led her back to the original records.
658	response rate	noun Study Field: Grade 9 precise high-utility word Word study: Term structure: response + rate. Study the complete expression as one field-specific unit.	the percentage of invited people or units that provide usable responses	Reminder messages increased the survey's response rate.
659	recovery	noun 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.	a return toward a normal, healthy, or successful condition	Wetland recovery began after grazing ended.
660	governance	noun Study Field: Grade 9 precise high-utility word Word study: Suffix focus: -ance commonly forms a noun naming an action, quality, or state.	the systems and processes through which an organization or society makes and applies decisions	Transparent governance includes public access to budgets and rules.
661	reinforcement	noun Study Field: Grade 9 precise high-utility word Word study: Suffix focus: -ment commonly forms a noun for an action, process, state, or result.	an action or material that strengthens a structure, behavior, or idea	Steel reinforcement helps concrete resist tension.
662	restriction	noun Study Field: Grade 9 precise high-utility word Word study: Suffix focus: -tion commonly forms a noun naming an action, process, or result.	a rule or condition that limits action, access, or amount	A seasonal restriction protects nesting birds from disturbance.
663	retention	noun Study Field: Grade 9 precise high-utility word Word study: Suffix focus: -tion commonly forms a noun naming an action, process, or result.	the act or ability of keeping, holding, or remembering something	Tree roots improve soil retention on the slope.
664	revelation	noun Study Field: Grade 9 precise high-utility word Word study: Suffix focus: -ation commonly forms a noun naming an action, process, or result.	a surprising fact made known or the act of revealing it	The diary's revelation changed how historians understood the expedition.
665	significance	noun Study Field: Grade 9 precise high-utility word Word study: Suffix focus: -ance commonly forms a noun naming an action, quality, or state.	importance, meaning, or the likelihood that a result reflects more than chance	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.

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.

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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.

9th Grade Vocabulary Words

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Evaluating a Public Policy

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