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English Vocabulary · Grade 5 Live Review Preview

5th Grade Vocabulary Words

Fifth-grade readers use increasingly precise vocabulary to compare sources, explain evidence, interpret literature, and learn independently across science, mathematics, and social studies. The curriculum emphasizes context clues, meaningful word parts, parts of speech, and language that strengthens both discussion and writing.

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. References calibrated level and coverage only; all learner-facing definitions and sample sentences are original KSSR copy.

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500 words
Words 426–450 of 500
#WordPattern / part of speechMeaningSample sentence
426orderedadjectiveGrade 5 mathematics wordarranged according to a particular sequence or ruleAn ordered pair lists the horizontal coordinate first.
427quadrantnounGrade 5 mathematics wordone of four regions formed by the axes on a coordinate planeThe point is located in the first quadrant.
428polygonnounGrade 5 mathematics worda closed flat shape made of straight sidesA hexagon is a polygon with six sides.
429anglenounGrade 5 mathematics worda figure formed where two rays or line segments meetA right angle measures ninety degrees.
430vertexnounGrade 5 mathematics worda point where lines, edges, or rays meetThe top vertex joins the triangle's two sloping sides.
431paralleladjectiveGrade 5 mathematics wordremaining the same distance apart and never meetingOpposite sides of a rectangle are parallel.
432perpendicularadjectiveGrade 5 mathematics wordmeeting to form a right angleThe vertical post is perpendicular to the ground.
433trianglenounGrade 5 mathematics worda polygon with three sides and three anglesThe triangle has one right angle.
434rectanglenounGrade 5 mathematics worda four-sided shape with four right anglesThe classroom floor forms a rectangle.
435rhombusnounGrade 5 mathematics worda four-sided shape whose sides are all equalThe tilted tile is a rhombus rather than a square.
436trapezoidnounGrade 5 mathematics worda four-sided shape with at least one pair of parallel sidesThe bridge support forms a trapezoid.
437circumferencenounGrade 5 mathematics wordthe distance around a circleWe wrapped string around the lid to measure its circumference.
438diameternounGrade 5 mathematics worda line segment through a circle's center with endpoints on the circleThe plate's diameter is twice its radius.
439radiusnounGrade 5 mathematics worda line segment from the center of a circle to its edgeThe compass was set to a radius of five centimeters.
440areanounGrade 5 mathematics wordthe amount of surface inside a flat shapeMultiply length by width to find a rectangle's area.
441perimeternounGrade 5 mathematics wordthe total distance around a flat shapeAdd all four side lengths to find the garden's perimeter.
442symmetrynounGrade 5 mathematics worda balanced arrangement in which parts match across a line or pointThe butterfly's wings show approximate symmetry.
443mediannounGrade 5 mathematics wordthe middle value in an ordered set of numbersThe median of three, five, and nine is five.
444modenounGrade 5 mathematics wordthe value that occurs most often in a data setThe mode of two, three, three, and five is three.
445rangenounGrade 5 mathematics wordthe difference between the greatest and least values in a data setThe range of four, seven, and twelve is eight.
446datanounGrade 5 mathematics wordfacts, measurements, or observations collected for studyWe recorded the rainfall data in a table.
447samplenounGrade 5 mathematics worda smaller group studied to learn about a larger groupThe survey used a sample of fifty residents.
448probabilitynounGrade 5 mathematics worda measure of how likely an event is to happenThe probability of rolling an even number is one half.
449possibleadjectiveGrade 5 mathematics wordable to happen or be doneRolling a six is possible with a standard number cube.
450impossibleadjectiveGrade 5 mathematics wordunable to happen or be doneIt is impossible to roll a seven on a standard six-sided number cube.

Vocabulary chart page

This page focuses on the word chart. Reading passages appear once in each three-page group, while cloze quizzes remain in the established enhanced range for this level.

Sources and curriculum references

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