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.

Open the basic text version — works without JavaScript and is suitable for printing.

Your private study tools

Track your learning with My Vocabulary

Use the three small controls beside any word. Your choices stay attached to your account and appear in your My Vocabulary record.

Star a difficult word to practise it again.
Check a word when you have learned it.
Add a note with a memory clue, synonym, or reminder.

These controls work during your free visits and save privately on this browser. Sign in to move them into your account’s My Vocabulary record.

Printable study sheet

Create a PDF worksheet

Choose any start-to-end page range and meaning language, then include or omit each practice section.

Start page End page Meaning language

Include practice sections Reading passage Comprehension questions Existing cloze MCQs

Words 736–770 of 800
#	Word	Details	Meaning	Sample sentence
736	justifiable	adjective Study Field: Grade 9 precise high-utility word Word study: Suffix focus: -able means capable of, suitable for, or worthy of an action.	សមហេតុផល	Temporary closure is justifiable when the bridge is unsafe.
737	legislative	adjective Study Field: Grade 9 precise high-utility word Word study: Suffix focus: -ive commonly forms an adjective meaning having a quality or tendency.	នីតិបញ្ញត្តិ	The bill entered the legislative process.
738	manipulative	adjective Study Field: Grade 9 precise high-utility word Word study: Suffix focus: -ive commonly forms an adjective meaning having a quality or tendency.	ឧបាយកល	The manipulative advertisement hides important fees until checkout.
739	measurable	adjective Study Field: Grade 9 precise high-utility word Word study: Suffix focus: -able means capable of, suitable for, or worthy of an action.	អាចវាស់វែងបាន។	The program set a measurable goal of reducing waste by ten percent.
740	negotiable	adjective Study Field: Grade 9 precise high-utility word Word study: Suffix focus: -able means capable of, suitable for, or worthy of an action.	អាចចរចារបាន។	The delivery date is negotiable, but the safety standard is not.
741	operational	adjective Study Field: Grade 9 precise high-utility word Word study: Base-form focus: operational is the dictionary headword; compare its inflected or derived forms in context.	ប្រតិបត្តិការ	The repaired water pump is operational again.
742	organizational	adjective Study Field: Grade 9 precise high-utility word Word study: Base-form focus: organizational is the dictionary headword; compare its inflected or derived forms in context.	អង្គការ	Clear organizational roles reduced duplicated work.
743	perceptible	adjective Study Field: Grade 9 precise high-utility word Word study: Suffix focus: -ible means capable of, suitable for, or able to be affected.	អាចយល់បាន។	A perceptible vibration began before the machine stopped.
744	preventive	adjective Study Field: Grade 9 precise high-utility word Word study: Suffix focus: -ive commonly forms an adjective meaning having a quality or tendency.	បង្ការ	Preventive maintenance replaced the worn cable before it failed.
745	proximate	adjective Study Field: Grade 9 precise high-utility word Word study: Base-form focus: proximate is the dictionary headword; compare its inflected or derived forms in context.	ជិត	The proximate cause of the outage was a fallen power line.
746	regulatory	adjective Study Field: Grade 9 precise high-utility word Word study: Base-form focus: regulatory is the dictionary headword; compare its inflected or derived forms in context.	បទប្បញ្ញត្តិ	The agency has regulatory authority over drinking-water quality.
747	illustrative	adjective Study Field: Grade 9 precise high-utility word Word study: Suffix focus: -ive commonly forms an adjective meaning having a quality or tendency.	រូបគំនូរ	The report includes an illustrative case from a small coastal town.
748	restrictive	adjective Study Field: Grade 9 precise high-utility word Word study: Suffix focus: -ive commonly forms an adjective meaning having a quality or tendency.	រឹតត្បិត	The drought led to restrictive rules on outdoor water use.
749	sequential	adjective Study Field: Grade 9 precise high-utility word Word study: Base-form focus: sequential is the dictionary headword; compare its inflected or derived forms in context.	បន្តបន្ទាប់	The instructions present the repair steps in sequential order.
750	substantive	adjective Study Field: Grade 9 precise high-utility word Word study: Suffix focus: -ive commonly forms an adjective meaning having a quality or tendency.	ខ្លឹមសារ	The revision makes a substantive change to tenant protections.
751	enduring	adjective Study Field: Grade 9 precise high-utility word Word study: Base-form focus: enduring is the dictionary headword; compare its inflected or derived forms in context.	1. គង់វង្ស 2. យូរអង្វែង 3. រៀងមក	The court decision had an enduring influence on civil rights.
752	transmissible	adjective Study Field: Grade 9 precise high-utility word Word study: Suffix focus: -ible means capable of, suitable for, or able to be affected.	អាចឆ្លងបាន។	The disease is transmissible through contaminated water.
753	auditable	adjective Study Field: Grade 9 precise high-utility word Word study: Suffix focus: -able means capable of, suitable for, or worthy of an action.	អាចសវនកម្មបាន។	Every purchase must leave an auditable trail.
754	underlying	adjective Study Field: Grade 9 precise high-utility word Word study: Base-form focus: underlying is the dictionary headword; compare its inflected or derived forms in context.	1. ជាទំរ 2. ទ្រ	The physician treated the underlying infection rather than only the fever.
755	additive	adjective Study Field: Grade 9 precise high-utility word Word study: Suffix focus: -ive commonly forms an adjective meaning having a quality or tendency.	សារធាតុបន្ថែម	The two small delays had an additive effect on travel time.
756	comparative	adjective Study Field: Grade 9 precise high-utility word Word study: Suffix focus: -ive commonly forms an adjective meaning having a quality or tendency.	ប្រៀបធៀប	The comparative essay considers how both novels portray exile.
757	competitive	adjective Study Field: Grade 9 precise high-utility word Word study: Suffix focus: -ive commonly forms an adjective meaning having a quality or tendency.	ប្រកួតប្រជែង	The company submitted a competitive bid for the project.
758	contextual	adjective Study Field: Grade 9 precise high-utility word Word study: Base-form focus: contextual is the dictionary headword; compare its inflected or derived forms in context.	នៃបរិបទ នៃបរិការណ៍ (ដែលបន្ស៊ីនឹងស្ថានការណ៍)	Contextual evidence shows that “draft” refers to a preliminary document.
759	correlational	adjective Study Field: Grade 9 precise high-utility word Word study: Base-form focus: correlational is the dictionary headword; compare its inflected or derived forms in context.	ជាប់ទាក់ទងគ្នា។	The correlational study found that sleep and concentration changed together.
760	deliberative	adjective Study Field: Grade 9 precise high-utility word Word study: Suffix focus: -ive commonly forms an adjective meaning having a quality or tendency.	ការពិចារណា	The citizens' panel used a deliberative process rather than a quick vote.
761	diagnostic	adjective Study Field: Grade 9 precise high-utility word Word study: Base-form focus: diagnostic is the dictionary headword; compare its inflected or derived forms in context.	រោគវិនិច្ឆ័យ	The mechanic ran a diagnostic test on the engine.
762	differential	adjective Study Field: Grade 9 precise high-utility word Word study: Base-form focus: differential is the dictionary headword; compare its inflected or derived forms in context.	ឌីផេរ៉ងស្យែល	A pressure differential moves air through the vent.
763	distributive	adjective Study Field: Grade 9 precise high-utility word Word study: Suffix focus: -ive commonly forms an adjective meaning having a quality or tendency.	ចែកចាយ	The debate concerns distributive fairness in the tax system.
764	environmental	adjective Study Field: Grade 9 precise high-utility word Word study: Base-form focus: environmental is the dictionary headword; compare its inflected or derived forms in context.	បរិស្ថាន	The review identifies environmental risks to the wetland.
765	evaluative	adjective Study Field: Grade 9 precise high-utility word Word study: Suffix focus: -ive commonly forms an adjective meaning having a quality or tendency.	ការវាយតម្លៃ	The conclusion makes an evaluative claim about the policy's success.
766	inferential	adjective Study Field: Grade 9 precise high-utility word Word study: Base-form focus: inferential is the dictionary headword; compare its inflected or derived forms in context.	អតិផរណា	Inferential statistics estimates population traits from sample data.
767	interpretative	adjective Study Field: Grade 9 precise high-utility word Word study: Suffix focus: -ive commonly forms an adjective meaning having a quality or tendency.	ការបកស្រាយ	The museum's interpretative label connects the tool with daily village life.
768	methodological	adjective Study Field: Grade 9 precise high-utility word Word study: Base-form focus: methodological is the dictionary headword; compare its inflected or derived forms in context.	វិធីសាស្រ្ត	A methodological flaw made the comparison unreliable.
769	participatory	adjective Study Field: Grade 9 precise high-utility word Word study: Base-form focus: participatory is the dictionary headword; compare its inflected or derived forms in context.	ការចូលរួម	Participatory planning invited residents to design the park.
770	predictive	adjective Study Field: Grade 9 precise high-utility word Word study: Suffix focus: -ive commonly forms an adjective meaning having a quality or tendency.	ទស្សន៍ទាយ	The predictive model estimates tomorrow's electricity demand.

Vocabulary reading and practice

Writing a Negotiable Proposal

Reading practice for pages 22–23. Five relevant words are highlighted.

English reading

A student council prepares a legislative proposal for later library hours. Its goal must be measurable, such as a documented increase in supervised study time. The writers avoid manipulative claims and support each cost with justifiable evidence. Because staffing remains negotiable, they offer several schedules instead of insisting on one fixed demand.

Khmer translation

A reviewed translation is not available for this passage yet.

Reading comprehension

1. What makes the proposal's goal measurable?

It names a documented increase in supervised study time.

2. What kind of claims do the writers avoid?

They avoid manipulative claims.

3. Why do they offer several schedules?

Staffing remains negotiable.

JavaScript is unavailable. The word list, language links, page links, reading, and answer-reveal questions above still work as ordinary HTML. Use the Basic text version to display the complete level on one page.

Sources and curriculum references

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

9th Grade Vocabulary Words

Track your learning with My Vocabulary

Create a PDF worksheet