5th Grade Vocabulary Words & Worksheets

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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Words 426–450 of 500
#	Word	Pattern / part of speech	Meaning	Sample sentence
426	ordered	adjectiveGrade 5 mathematics word	Reviewed Cantonese equivalent not yet available.	An ordered pair lists the horizontal coordinate first.
427	quadrant	nounGrade 5 mathematics word	Reviewed Cantonese equivalent not yet available.	The point is located in the first quadrant.
428	polygon	nounGrade 5 mathematics word	Reviewed Cantonese equivalent not yet available.	A hexagon is a polygon with six sides.
429	angle	nounGrade 5 mathematics word	Reviewed Cantonese equivalent not yet available.	A right angle measures ninety degrees.
430	vertex	nounGrade 5 mathematics word	Reviewed Cantonese equivalent not yet available.	The top vertex joins the triangle's two sloping sides.
431	parallel	adjectiveGrade 5 mathematics word	Reviewed Cantonese equivalent not yet available.	Opposite sides of a rectangle are parallel.
432	perpendicular	adjectiveGrade 5 mathematics word	Reviewed Cantonese equivalent not yet available.	The vertical post is perpendicular to the ground.
433	triangle	nounGrade 5 mathematics word	Reviewed Cantonese equivalent not yet available.	The triangle has one right angle.
434	rectangle	nounGrade 5 mathematics word	Reviewed Cantonese equivalent not yet available.	The classroom floor forms a rectangle.
435	rhombus	nounGrade 5 mathematics word	Reviewed Cantonese equivalent not yet available.	The tilted tile is a rhombus rather than a square.
436	trapezoid	nounGrade 5 mathematics word	Reviewed Cantonese equivalent not yet available.	The bridge support forms a trapezoid.
437	circumference	nounGrade 5 mathematics word	Reviewed Cantonese equivalent not yet available.	We wrapped string around the lid to measure its circumference.
438	diameter	nounGrade 5 mathematics word	Reviewed Cantonese equivalent not yet available.	The plate's diameter is twice its radius.
439	radius	nounGrade 5 mathematics word	Reviewed Cantonese equivalent not yet available.	The compass was set to a radius of five centimeters.
440	area	nounGrade 5 mathematics word	Reviewed Cantonese equivalent not yet available.	Multiply length by width to find a rectangle's area.
441	perimeter	nounGrade 5 mathematics word	Reviewed Cantonese equivalent not yet available.	Add all four side lengths to find the garden's perimeter.
442	symmetry	nounGrade 5 mathematics word	Reviewed Cantonese equivalent not yet available.	The butterfly's wings show approximate symmetry.
443	median	nounGrade 5 mathematics word	Reviewed Cantonese equivalent not yet available.	The median of three, five, and nine is five.
444	mode	nounGrade 5 mathematics word	Reviewed Cantonese equivalent not yet available.	The mode of two, three, three, and five is three.
445	range	nounGrade 5 mathematics word	Reviewed Cantonese equivalent not yet available.	The range of four, seven, and twelve is eight.
446	data	nounGrade 5 mathematics word	Reviewed Cantonese equivalent not yet available.	We recorded the rainfall data in a table.
447	sample	nounGrade 5 mathematics word	Reviewed Cantonese equivalent not yet available.	The survey used a sample of fifty residents.
448	probability	nounGrade 5 mathematics word	Reviewed Cantonese equivalent not yet available.	The probability of rolling an even number is one half.
449	possible	adjectiveGrade 5 mathematics word	Reviewed Cantonese equivalent not yet available.	Rolling a six is possible with a standard number cube.
450	impossible	adjectiveGrade 5 mathematics word	Reviewed Cantonese equivalent not yet available.	It is impossible to roll a seven on a standard six-sided number cube.

Words 426–450 of 500

Word

Pattern / part of speech

Meaning

Sample sentence

426

ordered

adjectiveGrade 5 mathematics word