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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 526–560 of 800
#WordDetailsMeaningSample sentence
526Pax Romanaproper noun
Study

Field: Grade 9 world-history, civics, and geography term

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

1. hoà bình 2. thái bìnhTrade expanded across imperial roads during the Pax Romana.
527civil lawnoun
Study

Field: Grade 9 world-history, civics, and geography term

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

1. hệ thống dân luật 2. hệ thống pháp luật lục địaRoman civil law influenced many later European legal systems.
528aqueductnoun
Study

Field: Grade 9 world-history, civics, and geography term

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

1. Cống 2. nướcThe aqueduct supplied the city from a mountain spring.
529feudal hierarchynoun
Study

Field: Grade 9 world-history, civics, and geography term

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

giai cấp phong kiếnLandholding and loyalty shaped the feudal hierarchy.
530serfdomnoun
Study

Field: Grade 9 world-history, civics, and geography term

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

1. Thân phận 2. nông nôUnder serfdom, peasants owed labor and dues but were not normally sold apart from the land.
531printing pressnoun
Study

Field: Grade 9 world-history, civics, and geography term

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

máy inMovable type and the printing press lowered the cost of books in Europe.
532Protestant Reformationproper noun
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Field: Grade 9 world-history, civics, and geography term

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

Cải Cách Tin LànhThe Protestant Reformation changed religious and political authority across Europe.
533Counter-Reformationproper noun
Study

Field: Grade 9 world-history, civics, and geography term

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

Phản cải cáchThe Council of Trent shaped the Counter-Reformation.
534scientific revolutionnoun
Study

Field: Grade 9 world-history, civics, and geography term

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

cuộc cách mạng khoa họcThe scientific revolution emphasized mathematical models and repeatable observation.
535heliocentric modelnoun
Study

Field: Grade 9 world-history, civics, and geography term

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

mô hình nhật tâmThe heliocentric model explained retrograde motion more simply.
536geocentric modelnoun
Study

Field: Grade 9 world-history, civics, and geography term

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

mô hình địa tâmThe geocentric model dominated much European astronomy for centuries.
537natural lawnoun
Study

Field: Grade 9 world-history, civics, and geography term

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

1. luật của tự nhiên 2. luật 3. tự nhiênEnlightenment writers used natural law to criticize arbitrary rule.
538social contractnoun
Study

Field: Grade 9 world-history, civics, and geography term

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

khế ước xã hộiThe social contract requires government to protect rights in exchange for civic obedience.
539consent of the governednoun
Study

Field: Grade 9 world-history, civics, and geography term

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

sự đồng ý của người quản lýRegular elections are one expression of consent of the governed.
540constitutionalismnoun
Study

Field: Grade 9 world-history, civics, and geography term

Word study: Suffix focus: -ism often names a belief, system, movement, or practice.

1. Chủ nghĩa 2. hợp hiếnConstitutionalism rejects the idea that rulers may govern without legal restraint.
541Age of Explorationproper noun
Study

Field: Grade 9 world-history, civics, and geography term

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

Thời đại khám pháDuring the Age of Exploration, voyages connected distant regions through trade and conquest.
542circumnavigationnoun
Study

Field: Grade 9 world-history, civics, and geography term

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

1. vòng quanh 2. biểnThe expedition completed the first recorded circumnavigation of the globe.
543map projection analysisnoun
Study

Field: Grade 9 world-history, civics, and geography term

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

phân tích phép chiếu bản đồMap projection analysis shows why Greenland appears unusually large on a Mercator map.
544navigationnoun
Study

Field: Grade 9 world-history, civics, and geography term

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

1. hàng hải 2. 航海 3. NghềImproved navigation helped sailors cross open oceans.
545imperial expansionnoun
Study

Field: Grade 9 world-history, civics, and geography term

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

sự mở rộng đế quốcImperial expansion displaced local rulers and redirected trade.
546Atlantic slave tradeproper noun
Study

Field: Grade 9 world-history, civics, and geography term

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

buôn bán nô lệ Đại Tây DươngThe Atlantic slave trade caused immense suffering and reshaped societies on several continents.
547industrial revolutionnoun
Study

Field: Grade 9 world-history, civics, and geography term

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

cuộc cách mạng công nghiệpThe industrial revolution moved much textile production from homes to factories.
548factory systemnoun
Study

Field: Grade 9 world-history, civics, and geography term

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

hệ thống nhà máyThe factory system divided manufacturing into repeated specialized tasks.
549mass productionnoun
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Field: Grade 9 world-history, civics, and geography term

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

sản xuất hàng loạtMass production reduced the price of many household items.
550rapid urbanizationnoun
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Field: Grade 9 world-history, civics, and geography term

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

đô thị hóa nhanh chóngRapid urbanization created crowded housing near nineteenth-century factories.
551labor movementnoun
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Field: Grade 9 world-history, civics, and geography term

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

phong trào lao độngThe labor movement campaigned for safer factories and shorter workdays.
552collective bargainingnoun
Study

Field: Grade 9 world-history, civics, and geography term

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

1. Thương 2. lượng 3. tập thểThrough collective bargaining, the union and company agreed on wages.
553laissez-faireadjective
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Field: Grade 9 world-history, civics, and geography term

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

tự do kinh doanhLaissez-faire thinkers argued that markets function best with limited regulation.
554class consciousnessnoun
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Field: Grade 9 world-history, civics, and geography term

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

ý thức giai cấpFactory workers developed class consciousness through common working conditions.
555national sovereigntynoun
Study

Field: Grade 9 world-history, civics, and geography term

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

chủ quyền quốc giaThe treaty recognized the new country's national sovereignty.
556legitimacynoun
Study

Field: Grade 9 world-history, civics, and geography term

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

1. Tính 2. hợp phápFree elections can strengthen a government's legitimacy.
557balance of powernoun
Study

Field: Grade 9 world-history, civics, and geography term

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

cân bằng quyền lựcDiplomats formed alliances to maintain a balance of power.
558alliance systemnoun
Study

Field: Grade 9 world-history, civics, and geography term

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

hệ thống liên minhThe alliance system turned a regional crisis into a wider war.
559diplomatic negotiationnoun
Study

Field: Grade 9 world-history, civics, and geography term

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

đàm phán ngoại giaoDiplomatic negotiation produced a temporary border settlement.
560militarizationnoun
Study

Field: Grade 9 world-history, civics, and geography term

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

sự quân sự hoáMilitarization increased spending on armies and weapons before the conflict.

Vocabulary reading and practice

From Rome to Feudal Europe

Reading practice for pages 16–18. Five relevant words are highlighted.

English reading

During the Pax Romana, imperial roads and each major aqueduct connected distant communities, while Roman civil law influenced later legal traditions. Centuries afterward, political power in parts of Europe became organized through a feudal hierarchy. Under serfdom, many agricultural workers were bound by obligations to landowners rather than protected as equal citizens.

Vietnamese translation

A reviewed translation is not available for this passage yet.

Reading comprehension

1. What connected Roman communities?

Roads and aqueducts connected Roman communities.

2. What Roman tradition influenced later law?

Roman civil law influenced later legal traditions.

3. How did serfdom restrict workers?

It bound many workers to landowners through obligations.

Sources and curriculum references

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