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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Words 376–400 of 500
#	Word	Details	Meaning	Sample sentence
376	preimage	noun 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.	the original figure before a geometric transformation	Triangle ABC is the preimage of the translated triangle A′B′C′.
377	orientation	noun Study Field: Grade 8 mathematics and economics word Word study: Suffix focus: -ation commonly forms a noun naming an action, process, or result.	the clockwise or counterclockwise order of a figure's vertices	A reflection reverses a polygon's orientation.
378	two-way-table	noun Study Field: Grade 8 mathematics and economics word Word study: Term structure: two + way + table. Study the complete expression as one field-specific unit.	a table that organizes data for two categorical variables	The two-way-table compares transportation choice with grade level.
379	relative-frequency	noun Study Field: Grade 8 mathematics and economics word Word study: Term structure: relative + frequency. Study the complete expression as one field-specific unit.	the proportion or percentage of observations in a category	Dividing each count by the total gives its relative-frequency.
380	bivariate-data	noun Study Field: Grade 8 mathematics and economics word Word study: Term structure: bivariate + data. Study the complete expression as one field-specific unit.	paired observations involving two variables	The bivariate-data record each student's height and arm span.
381	univariate-data	noun Study Field: Grade 8 mathematics and economics word Word study: Term structure: univariate + data. Study the complete expression as one field-specific unit.	observations involving a single variable	The list of daily temperatures is univariate-data.
382	cluster	noun Study 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.	a group of data points located close together	A cluster near the upper right appears in the scatter plot.
383	skewed	adjective Study 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.	describing a distribution with a longer tail on one side	Household-income data are often skewed toward higher values.
384	variability	noun Study 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.	the extent to which data values differ from one another	A larger spread in scores indicates greater variability.
385	standard-deviation	noun Study Field: Grade 8 mathematics and economics word Word study: Term structure: standard + deviation. Study the complete expression as one field-specific unit.	a measure of how far data values typically lie from their mean	The consistent measurements have a small standard-deviation.
386	sampling-error	noun Study Field: Grade 8 mathematics and economics word Word study: Term structure: sampling + error. Study the complete expression as one field-specific unit.	the difference between a sample result and the true population value caused by random selection	A larger random sample can reduce sampling-error.
387	margin-of-error	noun Study Field: Grade 8 mathematics and economics word Word study: Term structure: margin + of + error. Study the complete expression as one field-specific unit.	a range expressing the expected uncertainty around a sample estimate	The poll reports a margin-of-error of three percentage points.
388	economic-system	noun Study Field: Grade 8 mathematics and economics word Word study: Term structure: economic + system. Study the complete expression as one field-specific unit.	the organized way a society produces, distributes, and consumes resources	An economic-system determines who makes major production decisions.
389	command-economy	noun Study Field: Grade 8 mathematics and economics word Word study: Term structure: command + economy. Study the complete expression as one field-specific unit.	an economy in which central authorities direct major production and distribution	In a command-economy, the government sets many output targets.
390	mixed-economy	noun Study Field: Grade 8 mathematics and economics word Word study: Term structure: mixed + economy. Study the complete expression as one field-specific unit.	an economy combining private markets with government involvement	A mixed-economy allows private firms while regulating public utilities.
391	market-economy	noun Study Field: Grade 8 mathematics and economics word Word study: Term structure: market + economy. Study the complete expression as one field-specific unit.	an economy in which buyers and sellers largely guide production through prices	Competition influences what companies produce in a market-economy.
392	traditional-economy	noun Study Field: Grade 8 mathematics and economics word Word study: Term structure: traditional + economy. Study the complete expression as one field-specific unit.	an economy shaped mainly by longstanding customs and inherited roles	Fishing methods may pass through generations in a traditional-economy.
393	fiscal-policy	noun Study Field: Grade 8 mathematics and economics word Word study: Term structure: fiscal + policy. Study the complete expression as one field-specific unit.	government decisions about spending and taxation used to influence the economy	The legislature changed fiscal-policy by increasing infrastructure spending.
394	monetary-policy	noun Study Field: Grade 8 mathematics and economics word Word study: Term structure: monetary + policy. Study the complete expression as one field-specific unit.	actions by a central bank to influence money, credit, and interest rates	The central bank tightened monetary-policy to slow inflation.
395	central-bank	noun Study Field: Grade 8 mathematics and economics word Word study: Term structure: central + bank. Study the complete expression as one field-specific unit.	a national institution that manages currency and monetary policy	The central-bank raised its benchmark interest rate.
396	commercial-bank	noun Study Field: Grade 8 mathematics and economics word Word study: Term structure: commercial + bank. Study the complete expression as one field-specific unit.	a financial institution that accepts deposits and makes loans to customers	The commercial-bank approved a loan for the bakery.
397	interest-rate	noun Study Field: Grade 8 mathematics and economics word Word study: Term structure: interest + rate. Study the complete expression as one field-specific unit.	the percentage charged for borrowing money or earned by saving it	A lower interest-rate reduces the monthly cost of a loan.
398	compound-interest	noun Study Field: Grade 8 mathematics and economics word Word study: Term structure: compound + interest. Study the complete expression as one field-specific unit.	interest calculated on both the original amount and previously earned interest	Compound-interest causes long-term savings to grow more quickly.
399	simple-interest	noun Study Field: Grade 8 mathematics and economics word Word study: Term structure: simple + interest. Study the complete expression as one field-specific unit.	interest calculated only on the original amount of money	The loan uses simple-interest based on its starting principal.
400	net-worth	noun Study Field: Grade 8 mathematics and economics word Word study: Term structure: net + worth. Study the complete expression as one field-specific unit.	the value of what a person or organization owns minus what it owes	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.

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.

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

8th Grade Vocabulary Words

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Turning a Figure

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