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English Vocabulary · Grade 8 Live Review Preview

8th Grade Vocabulary Words

Eighth-grade readers move toward high-school-level analysis across literature, argument, research, physical and life science, algebra, economics, history, and civics. This level strengthens precise Tier II and cross-curricular vocabulary while emphasizing context, analogy, word relationships, Greek and Latin roots, multiple meanings, source judgment, and evidence-based communication.

This independently authored 500-word beta curriculum is arranged in twenty pages of twenty-five words each. Words 1–300 include five cloze questions per page; words 301–500 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 8 resources calibrate difficulty and vocabulary-study skills only; all learner-facing definitions, examples, quizzes, and descriptions are original KSSR copy.

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500 words
Words 376–400 of 500
#WordDetailsMeaningSample sentence
376preimagenoun
Study

Field: Grade 8 mathematics and economics word

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

原像Triangle ABC is the preimage of the translated triangle A′B′C′.
377orientationnoun
Study

Field: Grade 8 mathematics and economics word

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

新生訓練A reflection reverses a polygon's orientation.
378two-way-tablenoun
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Field: Grade 8 mathematics and economics word

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

双向表The two-way-table compares transportation choice with grade level.
379relative-frequencynoun
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Field: Grade 8 mathematics and economics word

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

相对频率Dividing each count by the total gives its relative-frequency.
380bivariate-datanoun
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Field: Grade 8 mathematics and economics word

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

双变量数据The bivariate-data record each student's height and arm span.
381univariate-datanoun
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Field: Grade 8 mathematics and economics word

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

单变量数据The list of daily temperatures is univariate-data.
382clusternoun
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Field: Grade 8 mathematics and economics word

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

1. 串 2. 叢 3. 簇A cluster near the upper right appears in the scatter plot.
383skewedadjective
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Field: Grade 8 mathematics and economics word

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

倾斜的Household-income data are often skewed toward higher values.
384variabilitynoun
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Field: Grade 8 mathematics and economics word

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

變率A larger spread in scores indicates greater variability.
385standard-deviationnoun
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Field: Grade 8 mathematics and economics word

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

标准差The consistent measurements have a small standard-deviation.
386sampling-errornoun
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Field: Grade 8 mathematics and economics word

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

抽样误差A larger random sample can reduce sampling-error.
387margin-of-errornoun
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Field: Grade 8 mathematics and economics word

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

误差幅度The poll reports a margin-of-error of three percentage points.
388economic-systemnoun
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Field: Grade 8 mathematics and economics word

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

经济体系An economic-system determines who makes major production decisions.
389command-economynoun
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Field: Grade 8 mathematics and economics word

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

指令经济In a command-economy, the government sets many output targets.
390mixed-economynoun
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Field: Grade 8 mathematics and economics word

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

混合经济A mixed-economy allows private firms while regulating public utilities.
391market-economynoun
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Field: Grade 8 mathematics and economics word

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

市场经济Competition influences what companies produce in a market-economy.
392traditional-economynoun
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Field: Grade 8 mathematics and economics word

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

传统经济Fishing methods may pass through generations in a traditional-economy.
393fiscal-policynoun
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Field: Grade 8 mathematics and economics word

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

财政政策The legislature changed fiscal-policy by increasing infrastructure spending.
394monetary-policynoun
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Field: Grade 8 mathematics and economics word

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

货币政策The central bank tightened monetary-policy to slow inflation.
395central-banknoun
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Field: Grade 8 mathematics and economics word

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

中央银行The central-bank raised its benchmark interest rate.
396commercial-banknoun
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Field: Grade 8 mathematics and economics word

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

商业银行The commercial-bank approved a loan for the bakery.
397interest-ratenoun
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Field: Grade 8 mathematics and economics word

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

利率A lower interest-rate reduces the monthly cost of a loan.
398compound-interestnoun
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Field: Grade 8 mathematics and economics word

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

复利Compound-interest causes long-term savings to grow more quickly.
399simple-interestnoun
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Field: Grade 8 mathematics and economics word

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

简单利益The loan uses simple-interest based on its starting principal.
400net-worthnoun
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Field: Grade 8 mathematics and economics word

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

净资产Subtracting liabilities from assets gives net-worth.

Vocabulary reading and practice

Turning a Figure

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

English reading

In geometry, Elena rotates a preimage and checks the new figure’s orientation. Later, she studies bivariate-data about study time and quiz scores. A two-way-table organizes the categories, while relative-frequency helps her compare groups of different sizes.

Simplified Chinese translation

A reviewed translation is not available for this passage yet.

Reading comprehension

1. What does Elena rotate?

Elena rotates a preimage.

2. What data does she study?

She studies study time and quiz scores.

3. Why does she use relative frequency?

It helps compare groups of different sizes.

Sources and curriculum references

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